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Author SHA1 Message Date
432b19818e
made dj options no longer alphabetized 2024-04-28 20:42:44 -06:00
187d9486b7
dj.1: debug output clarification 2024-04-18 08:44:44 -06:00
b41af1b578
dj.1: -c: grammar 2024-04-18 08:41:55 -06:00
ed284b9949
dj.1: -a: More specific wording 2024-04-18 08:40:29 -06:00
3cdade71e2
dj.1: -S whether or not the input is a stream is irrelevant 2024-04-18 08:38:48 -06:00
df16707b0e
intcmp.1: -e permits adjacent integers to be equal to each other 2024-04-18 08:36:01 -06:00
13ee16173e
fop.1: initial commit 2024-03-29 16:47:00 -06:00
5db09a5ca1
mm.1: cat(1p) and tee(1p) provide similar functionality 2024-03-29 16:30:06 -06:00
ce5a4dc4bd
mm.1: removed STANDARD INPUT section 2024-03-29 16:29:27 -06:00
abc599148d
mm.1: subsequent outputs are opened for appending 2024-03-29 16:26:41 -06:00
63c8ff8093
intcmp.1: compares integers to each other 2024-03-29 16:22:56 -06:00
9ea57a27b7
dj.1: stdin by default 2024-03-29 16:21:02 -06:00
4e33f945ae
dj.1: null bytes 2024-03-29 16:17:48 -06:00
70b0c2f924
dj.1: fixed -d description 2024-03-29 16:14:27 -06:00
603d8ee1d8
str.1: remove extraneous former implementation information 2024-03-27 00:17:33 -06:00
cdd8e79b01
str.1: strings are not tested against each other 2024-03-27 00:16:51 -06:00
d3bfc7b1f5
npc.1: ASCII bytes 2024-03-27 00:16:15 -06:00
3cb37d830a
mm.1: wording, consistency with dj.1 2024-03-27 00:14:34 -06:00
6158a39a4a
dj.1: consistency with mm.1 2024-03-27 00:14:02 -06:00
a2188dc674
dj.1: fix -H description 2024-03-27 00:09:17 -06:00
49e2022e52
dj.1: -d, -i, -o, fixed descriptions 2024-03-27 00:08:43 -06:00
bb43533a37
dj.1: -A and -a: fix descriptions 2024-03-26 23:58:00 -06:00
f565f0530b
dj.1: dd(1p) is not a disk utility 2024-03-26 23:53:10 -06:00
a1902df503
strcmp.1: Unicode is a proper noun 2024-03-26 23:50:16 -06:00
63a0c683f9
docs: remove unnecessary references to the name of each program 2024-03-26 19:22:30 -06:00
cf76fa94e6
mm.1: updated man page 2024-03-26 18:44:05 -06:00
a6fd1108c6
docs: fixed formatting of many manpages 2024-03-26 18:26:51 -06:00
13 changed files with 455 additions and 265 deletions

197
docs/dj.1
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@ -1,4 +1,5 @@
.\" Copyright (c) 2024 DTB <trinity@trinity.moe>
.\" Copyright (c) 2024 Emma Tebibyte <emma@tebibyte.media>
.\"
.\" This work is licensed under CC BY-SA 4.0. To see a copy of this license,
.\" visit <http://creativecommons.org/licenses/by-sa/4.0/>.
@ -44,87 +45,139 @@ dj
.B output offset
.R ])
.SH USAGE
.SH OPTIONS
The
.B -i
option takes a path as an argument to open and use in place of standard input.
The
.B -o
option does the same in place of standard output. Dj does not truncate output
files and instead writes over the bytes in the existing file.
.PP
The
.RS
Takes a file path as an argument to open and use as an input.
.RE
.B -b
option takes a numeric argument as the size in bytes of the input buffer and
the
.B -B
option does the same for the output buffer, the default for both being 1024
bytes, or one kibibyte (KiB).
.PP
The
.RS
Takes a numeric argument as the size in bytes of the input buffer, with the
default being 1024 bytes or one kibibyte (KiB).
.RE
.B -s
option takes a numeric argument as the number of bytes to skip into the input
before starting to read, and the
.RS
Takes a numeric argument as the number of bytes to skip into the input
before starting to read. If the standard input is used, bytes read to this point
are discarded.
.RE
.B -o
.RS
Takes a file path as an argument to open and use as an output.
.RE
.B -B
.RS
Does the same as
.B -b
but for the output buffer.
.RE
.B -S
option skips a number of bytes through the output before starting to write from
the input. If the input is a stream the bytes are read and discarded. If the
output is a stream, nul characters are printed.
.PP
The
.RS
Skips a number of bytes through the output before starting to write from
the input. If the output is a stream, null characters are printed.
.RE
.B -a
option takes one argument of one byte in length and pads the input buffer with
that byte in the event that a read doesn't fill the input buffer, and the
.B -A
option takes no arguments and pads with nuls.
The
.RS
Accepts a single literal byte with which input buffer is padded in the event
of an incomplete read from the input file.
.RE
.B -c
option specifies an amount of reads to make, and if 0 (the default) dj will
continue reading until a partial or empty read.
.PP
On a partial or empty read, dj prints a diagnostic message (unless the
.B -q
option is specified) and exits (unless the
.B -n
option is specified, in which case only two consecutive empty reads will cause
dj to exit).
At exit, usage statistics are printed unless the option
.B -q
is specified a second time. The
.RS
Specifies a number of reads to make. If set to zero (the default), reading will
continue until a partial or empty read is encountered.
.RE
.B -A
.RS
If the output is a stream, null bytes are printed. This option is equivalent to
specifying
.B -a
with a null byte instead of a character.
.RE
.B -d
.RS
Prints invocation information before program execution as described in the
DIAGNOSTICS section below. Each invocation increments the debug level of the
program.
.RE
.B -H
option will make these diagnostics human-readable.
.RS
Prints diagnostics messages in a human-readable manner as described in the
DIAGNOSTICS section below.
.RE
.B -n
.RS
Retries failed reads once more before exiting.
.RE
.B -q
.RS
Suppresses error messages which print when a read or write is partial or
empty. Each invocation decrements the debug level of the program.
.RE
.SH STANDARD INPUT
The standard input shall be used as an input if no inputs are specified one or
more of the input files is “-”.
.SH DIAGNOSTICS
The
.B -d
option prints all information, user-specified or otherwise, before program
execution.
.PP
When dj exits, by default statistics are printed for input and output to
standard error in the following format:
.PP
On a partial or empty read, a diagnostic message is printed (unless the
.B -q
option is specified) and the program exits (unless the
.B -n
option is specified.
By default statistics are printed for input and output to the standard error in
the following format:
.RS
.R {records read} {ASCII unit separator} {partial records read}
.R {ASCII record separator} {records written} {ASCII unit separator}
.R {partial records written} {ASCII group separator} {bytes read}
.R {ASCII record separator} {bytes written} {ASCII file separator}
.PP
If the
.RE
This format for diagnostic output is designed to be machine-parseable for
convenience. For a more human-readable format, the
.B -H
option is specified dj instead uses this following format:
.PP
option may be specified. In this event, the following format is used instead:
.RS
.R {records read} '+' {partial records read} '>' {records written}
.R '+' {partial records written} ';' {bytes read} '>' {bytes written}
.R {ASCII line feed}
.PP
The
.B -q
option suppresses error messages which print when a read or write is partial or
empty and when used twice suppresses diagnostic output entirely.
.PP
In non-recoverable errors that don't pertain to dj's read-write cycle, a
diagnostic message is printed and dj exits with the appropriate sysexits(3)
status.
.RE
If the
.B -d
option is specified, debug output will be printed at the beginning of execution.
This debug information contains information regarding how the program was
invoked. The following example is the result of running the program with
.B -d
as the only argument:
.RS
.R argv0=dj
.R in=<stdin> ibs=1024 skip=0 align=ff count=0
.R out=<stdout> obs=1024 seek=0 debug= 3 noerror=0
.RE
In non-recoverable errors that dont pertain to the read-write cycle, a
diagnostic message is printed and the program exits with the appropriate
sysexits.h(3) status.
.SH BUGS
@ -136,25 +189,29 @@ expected (the product of the count multiplied by the input block size). If the
or
.B -A
options are used this could make data written nonsensical.
.PP
Many lowercase options have capitalized variants and vice-versa which can be
confusing. Capitalized options tend to affect output or are more intense
versions of lowercase options.
.SH CAVEATS
Existing files are not truncated on ouput and are instead overwritten.
.SH RATIONALE
Dj was modeled after the dd utility specified in POSIX but adds additional
features: typical option formatting, allowing seeks to be specified in bytes
This program was based on the dd(1p) utility as specified in POSIX. While
character conversion may have been the original intent of dd(1p), it is
irrelevant to its modern use. Because of this, it eschews character conversion
and adds typical option formatting, allowing seeks to be specified in bytes
rather than in blocks, allowing arbitrary bytes as padding, and printing in a
format that's easy to parse for machines. It also neglects character
conversion, which may be dd's original intent but is irrelevant to its modern
use.
format thats easy to parse for machines.
.SH COPYRIGHT
Copyright (C) 2023 DTB. License AGPLv3+: GNU AGPL version 3 or later
Copyright © 2023 DTB. License AGPLv3+: GNU AGPL version 3 or later
<https://gnu.org/licenses/agpl.html>.
.SH SEE ALSO
dd(1)
dd(1p)

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@ -1,5 +1,5 @@
.\" Copyright (c) 2022, 2024 DTB <trinity@trinity.moe>
.\" Copyright (c) 2023 Emma Tebibyte <emma@tebibyte.media>
.\" Copyright (c) 20232024 Emma Tebibyte <emma@tebibyte.media>
.\"
.\" This work is licensed under CC BY-SA 4.0. To see a copy of this license,
.\" visit <http://creativecommons.org/licenses/by-sa/4.0/>.
@ -12,14 +12,13 @@ false \(en do nothing, unsuccessfully
.SH DESCRIPTION
False does nothing regardless of operands or standard input.
False will always return an exit code of 1.
Do nothing regardless of operands or standard input.
An exit code of 1 will always be returned.
.SH RATIONALE
False exists for the construction of control flow and loops based on a failure.
False functions as described in POSIX.1-2017.
In POSIX.1-2017, false(1p) exists for the construction of control flow and loops
based on a failure. This implementation functions as described in that standard.
.SH AUTHOR

60
docs/fop.1 Normal file
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@ -0,0 +1,60 @@
.\" Copyright (c) 2024 DTB <trinity@trinity.moe>
.\" Copyright (c) 2024 Emma Tebibyte <emma@tebibyte.media>
.\"
.\" This work is licensed under CC BY-SA 4.0. To see a copy of this license,
.\" visit <http://creativecommons.org/licenses/by-sa/4.0/>.
.TH fop 1
.SH NAME
fop \(en field operator
.SH SYNOPSIS
fop
.RB ( -d )
.RB [ delimiter ]
.RB index
.RB program...
.SH DESCRIPTION
Performs operations on specified fields in input data.
.SH OPTIONS
.B -d
.RS
Sets a delimiter by which the input data will be split into fields. The default
is an ASCII record separator (␞).
.RE
.SH STANDARD INPUT
Data will be read from the standard input.
.SH CAVEATS
Field indices are zero-indexed, which may be unexpected behavior for some users.
.SH RATIONALE
With the assumption that tools will output data separated with ASCII field
separators, there is
The idea for this utility originated in the fact that GNU ls(1) utility contains
a
.B -h
option which enables human-readable units in file size outputs. This
functionality was broken out into hru(1), but there was no easy way to modify
the field in the ouput of ls(1p) without a new tool.
.SH COPYRIGHT
Copyright © 2024 Emma Tebibyte. License AGPLv3+: GNU AGPL version 3 or later
<https://gnu.org/licenses/agpl.html>.
.SH SEE ALSO
sed(1p)

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@ -3,7 +3,7 @@
.\" This work is licensed under CC BY-SA 4.0. To see a copy of this license,
.\" visit <http://creativecommons.org/licenses/by-sa/4.0/>.
.TH rpn 1
.TH hru 1
.SH NAME
@ -15,18 +15,20 @@ hru
.SH DESCRIPTION
Hru reads byte counts in the form of whole numbers from the standard input and
writes to the standard output the same number converted one of the units of data
defined by the International System of Units.
Convert counts to higher units.
The program will read byte counts in the form of whole numbers from the standard
input and write to the standard output the same number converted to a higher
unit of data as defined by the International System of Units.
The program will convert the byte count to the highest unit possible where the
value is greater than one.
.SH DIAGNOSTICS
If encountering non-integer characters in the standard input, hru will exit with
the appropriate error code as defined by sysexits.h(3) and print an error
message.
If encountering non-integer characters in the standard input, the program will
exit with the appropriate error code as defined by sysexits.h(3) and print an
error message.
.SH RATIONALE
@ -39,9 +41,9 @@ program.
.SH STANDARDS
Hru follows the standard unit prefixes as specified by the Bureau International
des Poids et Mesures (BIPM) in the ninth edition of The International System of
Units (SI).
The standard unit prefixes as specified by the Bureau International des Poids
et Mesures (BIPM) in the ninth edition of The International System of Units
(SI) are utilized for the ouput of conversions.
.SH AUTHOR

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@ -1,5 +1,5 @@
.\" Copyright (c) 20232024 DTB <trinity@trinity.moe>
.\" Copyright (c) 2023 Emma Tebibyte <emma@tebibyte.media>
.\" Copyright (c) 20232024 Emma Tebibyte <emma@tebibyte.media>
.\"
.\" This work is licensed under CC BY-SA 4.0. To see a copy of this license,
.\" visit <http://creativecommons.org/licenses/by-sa/4.0/>.
@ -13,45 +13,59 @@ intcmp \(en compare integers
.SH SYNOPSIS
intcmp
.RB ( -eghl )
.RB ( -egl )
.RB [ integer ]
.RB [ integer... ]
.SH DESCRIPTION
Intcmp compares integers.
Compare integers to each other.
.SH USAGE
The -e option permits given integers to be equal to each other. If combined
with -g or -l, only adjacent integers in the argument sequence can be equal.
.PP
The -g option permits a given integer to be greater than the following integer.
.PP
The -l option permits a given integer to be less than the following integer.
.PP
.B -e
.RS
Permits given integers to be equal to each other.
.RE
.B -g
.RS
Permits a given integer to be greater than the following integer.
.RE
.B -l
.RS
Permits a given integer to be less than the following integer.
.RE
.SH EXAMPLES
It may help to think of the -e, -g, and -l options as equivalent to the
infix algebraic “=”, “>”, and “<” operators respectively, with each option
putting its symbol between every given integer. For example,
putting its symbol between every given integer. The following example is
equivalent to evaluating “1 < 2 < 3”:
.RS
.R intcmp -l 1 2 3
is equivalent to evaluating "1 < 2 < 3".
.RE
.SH DIAGNOSTICS
Intcmp exits 0 for a valid expression and 1 for an invalid expression.
.PP
Intcmp prints a debug message and exits with the appropriate sysexits(3) error
code in the event of an error.
The program will exit with a status code of 0 for a valid expression and with a
code of 1 for an invalid expression.
In the event of an error, a debug message will be printed and the program will
exit with the appropriate sysexits.h(3) error code.
.SH BUGS
There are multiple ways to express compound comparisons; “less than or equal
to” can be -le or -el, for example.
.PP
The inequality comparison is -gl or -lg for “less than or greater than”; this
is elegant but unintuitive.
.PP
-egl, "equal to or less than or greater than", exits 0 no matter what for valid
-egl, “equal to or less than or greater than”, exits 0 no matter what for valid
program usage and may be abused to function as an integer validator.
Use str(1) instead.
@ -61,7 +75,7 @@ The traditional tool for integer comparisons in POSIX and other Unix shells has
been test(1). This tool also handles string comparisons and file scrutiny.
These parts of its functionality have been broken out into multiple utilities.
Strcmps functionality may be performed on a POSIX-compliant system with
This programs functionality may be performed on a POSIX-compliant system with
test(1p).
.SH AUTHOR

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@ -20,51 +20,63 @@ mm
.SH DESCRIPTION
Mm catenates input files and writes them to the start of each output file.
Catenate input files and write them to the start of each output file or stream.
.SH OPTIONS
Mm, upon receiving the
.B -a
option, will open subsequent outputs for appending rather than updating.
.PP
The
.B -i
option opens a path as an input. Without any inputs specified mm will use
standard input. Standard input itself can be specified by giving the path '-'.
.PP
The
.B -o
option opens a path as an output. Without any outputs specified mm will use
standard output. Standard output itself can be specified by giving the
path '-'. Standard error itself can be specified with the
.RS
Opens subsequent outputs for appending rather than updating.
.RE
.B -e
option.
.PP
The
.RS
Use the standard error as an output.
.RE
.B -i
.RS
Opens a path as an input. Without any inputs specified mm will use the
standard input. The standard input shall be used as an input if one or more of
the input files is “-”.
.RE
.B -o
.RS
Opens a path as an output. Without any outputs specified mm will use the
standard output. The standard output shall be used as an output if one or more
of the output files is “-”.
.RE
.B -u
option ensures neither input or output will be buffered.
.PP
The
.RS
Ensures neither input or output will be buffered.
.RE
.B -n
option tells mm to ignore SIGINT signals.
.RS
Causes SIGINT signals to be ignored.
.RE
.SH DIAGNOSTICS
If an output can no longer be written mm prints a diagnostic message, ceases
writing to that particular output, and if there are more outputs specified,
continues, eventually exiting unsuccessfully.
.PP
On error mm prints a diagnostic message and exits with the appropriate
sysexits.h(3) status.
.SH BUGS
When an error is encountered, diagnostic message is printed and the program
exits with the appropriate sysexits.h(3) status.
Mm does not truncate existing files, which may lead to unexpected results.
.SH CAVEATS
Existing files are not truncated on ouput and are instead overwritten.
.SH RATIONALE
Mm was modeled after the cat and tee utilities specified in POSIX.
The cat(1p) and tee(1p) programs specified in POSIX together provide similar
functionality. The separation of the two sets of functionality into separate
APIs seemed unncessary.
.SH COPYRIGHT

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@ -1,5 +1,5 @@
.\" Copyright (c) 20232024 DTB <trinity@trinity.moe>
.\" Copyright (c) 2023 Emma Tebibyte <emma@tebibyte.media>
.\" Copyright (c) 20232024 Emma Tebibyte <emma@tebibyte.media>
.\"
.\" This work is licensed under CC BY-SA 4.0. To see a copy of this license,
.\" visit <http://creativecommons.org/licenses/by-sa/4.0/>.
@ -13,43 +13,50 @@ npc \(en show non-printing characters
.SH SYNOPSIS
npc
.RB ( -eht )
.RB ( -et )
.SH DESCRIPTION
Npc reads from standard input and writes to standard output, replacing non-
printing characters with printable equivalents. Control characters print as a
carat ('^') followed by the character '@' through '_' corresponding to the
character replaced (e.g. control-X becomes "^X"). The delete character (0x7F)
becomes "^?". Characters with the high bit set (>127) are printed as "M-"
Print normally non-printing characters.
The program reads from standard input and writes to standard output, replacing
non-printing characters with printable equivalents. Control characters print as
a carat ('^') followed by the character '@' through '_' corresponding to the
character replaced (e.g. control-X becomes '^X'). The delete character (0x7F)
becomes '^?'. Characters with the high bit set (>127) are printed as 'M-'
followed by the graphical representation for the same character without the
high bit set.
.PP
The
.SH USAGE
.B -e
option prints a currency sign ('$') before each line ending.
.PP
The
.RS
Prints a currency sign ('$') before each line ending.
.RE
.B -t
option prints tab characters as "^I" rather than a literal horizontal tab.
.RS
Prints tab characters as '^I' rather than a literal horizontal tab.
.RE
.SH DIAGNOSTICS
Npc prints a debug message and exits with the appropriate sysexits(3) error
code in the event of an error, otherwise it exits successfully.
In the event of an error, a debug message will be printed and the program will
exit with the appropriate sysexits.h(3) error code.
.SH BUGS
Npc operates in single-byte chunks regardless of intended encoding.
The program operates in single-byte chunks regardless of intended encoding.
.SH RATIONALE
POSIX currently lacks a way to display non-printing characters in the terminal
using a standard tool. A popular extension to cat(1p), the -v option, is the
bandage solution GNU and other software suites use.
using a standard tool. A popular extension to cat(1p), the
.B -v
option, is the bandage solution GNU and other software suites use.
This functionality should be a separate tool because its usefulness extends
beyond that of cat(1p).
This functionality is a separate tool because its usefulness extends beyond that
of cat(1p).
.SH AUTHOR

View File

@ -17,10 +17,13 @@ rpn
.SH DESCRIPTION
Rpn evaluates reverse polish notation expressions either read from the standard
input or parsed from provided arguments. See the STANDARD INPUT section.
Evaluate reverse polish notation.
Upon evaluation, rpn will print the resulting number on the stack to the
The program evaluates reverse polish notation expressions either read from the
standard input or parsed from provided arguments. See the STANDARD INPUT
section.
Upon evaluation, the program will print the resulting number on the stack to the
standard output. Any further specified numbers will be placed at the end of the
stack.
@ -28,14 +31,16 @@ For information on for reverse polish notation syntax, see rpn(7).
.SH STANDARD INPUT
If arguments are passed to rpn, it interprets them as an expression to be
evaluated. Otherwise, it reads whitespace-delimited numbers and operations from
the standard input.
If arguments are passed , they are interpreted as an expression to be evaluated.
Otherwise, it reads whitespace-delimited numbers and operations from the
standard input.
.SH DIAGNOSTICS
If encountering a syntax error, rpn will exit with the appropriate error code
as defined by sysexits.h(3) and print an error message.
In the event of a syntax error, the program will print an
In the event of an error, a debug message will be printed and the program will
exit with the appropriate sysexits.h(3) error code.
.SH CAVEATS
@ -44,7 +49,7 @@ with the IEEE Standard for Floating Point Arithmetic (IEEE 754), floating-point
arithmetic has rounding errors. This is somewhat curbed by using the
machine epsilon as provided by the Rust standard library to which to round
numbers. Because of this, variation is expected in the number of decimal places
rpn can handle based on the platform and hardware of any given machine.
the program can handle based on the platform and hardware of any given machine.
.SH RATIONALE

View File

@ -1,4 +1,5 @@
.\" Copyright (c) 2024 DTB <trinity@trinity.moe>
.\" Copyright (c) 2024 Emma Tebibyte <emma@tebibyte.media>
.\"
.\" This work is licensed under CC BY-SA 4.0. To see a copy of this license,
.\" visit <http://creativecommons.org/licenses/by-sa/4.0/>.
@ -17,62 +18,92 @@ scrut
.SH DESCRIPTION
Scrut determines if given files comply with the opted requirements.
Determine if files comply with requirements.
.SH OPTIONS
.B -b
requires the given files to exist and be block special files.
.PP
.B -c
requires the given files to exist and be character special files.
.PP
.B -d
requires the given files to exist and be directories.
.PP
.B -e
requires the given files to exist, and is redundant to any other option.
.PP
.B -e
requires the given files to exist and be regular files.
.PP
.B -g
requires the given files to exist and have their set group ID flags set.
.PP
.B -k
requires the given files to exist and have their sticky bit set.
.PP
.B -p
requires the given files to exist and be named pipes.
.PP
.B -r
requires the given files to exist and be readable.
.PP
.B -u
requires the given files to exist and have their set user ID flags set.
.PP
.B -w
requires the given files to exist and be writable.
.PP
.B -x
requires the given files to exist and be executable.
.PP
.B -L
requires the given files to exist and be symbolic links.
.PP
.RS
Requires the given files to exist and be symbolic links.
.RE
.B -S
requires the given files to exist and be sockets.
.RS
Requires the given files to exist and be sockets.
.RE
.B -b
.RS
Requires the given files to exist and be block special files.
.RE
.B -c
.RS
Requires the given files to exist and be character special files.
.RE
.B -d
.RS
Requires the given files to exist and be directories.
.RE
.B -e
.RS
Requires the given files to exist, and is redundant to any other option.
.RE
.B -e
.RS
Requires the given files to exist and be regular files.
.RE
.B -g
.RS
Requires the given files to exist and have their set group ID flags set.
.RE
.B -k
.RS
Requires the given files to exist and have their sticky bit set.
.RE
.B -p
.RS
Requires the given files to exist and be named pipes.
.RE
.B -r
.RS
Requires the given files to exist and be readable.
.RE
.B -u
.RS
Requires the given files to exist and have their set user ID flags set.
.RE
.B -w
.RS
Requires the given files to exist and be writable.
.RE
.B -x
.RS
Requires the given files to exist and be executable.
.RE
.SH EXIT STATUS
Scrut prints a debug message and exits unsuccessfully with the appropriate
sysexits.h(3) error code if invoked incorrectly. Scrut exits successfully if
the given files comply with their requirements and unsuccessfully otherwise.
If the given files comply with the specified requirements, the program will exit
successfully. If not, it exits unsuccessfully.
When invoked incorrectly, a debug message will be printed and the program will
exit with the appropriate sysexits.h(3) error code.
.SH STANDARDS
Scrut is nearly compatible with POSIX's test utility though it is narrower in
scope. Notably, the
The test(1p) utility contains functionality that was broken out into separate
programs. Thus, the scope of this program is narrower than it. Notably, the
.B -h
option is now invalid and therefore shows usage information instead of being an
alias to the modern

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@ -1,5 +1,5 @@
.\" Copyright (c) 20232024 DTB <trinity@trinity.moe>
.\" Copyright (c) 2023 Emma Tebibyte <emma@tebibyte.media>
.\" Copyright (c) 20232024 Emma Tebibyte <emma@tebibyte.media>
.\"
.\" This work is licensed under CC BY-SA 4.0. To see a copy of this license,
.\" visit <http://creativecommons.org/licenses/by-sa/4.0/>.
@ -18,30 +18,27 @@ str
.SH DESCRIPTION
Str tests each character in an arbitrary quantity of string arguments against
the function of the same name within ctype(3).
Test string arguments.
The tests in this program are equivalent to the functions with the same names in
ctype.h(0p) and are the methods by which string arguments are tested.
.SH DIAGNOSTICS
Str exits successfully if all tests pass and unsuccessfully if a test failed.
.PP
Str will exit unsuccessfully if a string is empty, as none of its contents
passed the test.
.PP
Str will print a message to standard error and exit unsuccessfully if used
improperly.
If all tests pass, the program will exit with an exit code of 0. If any of the
tests fail, the program will exit unsuccessfully with an error code of 1.
.SH DEPRECATED FEATURES
An empty string will cause an unsuccessful exit as none of its contents pass any
tests.
Str used to have an "isvalue" type as an extension to ctype(3). This was
removed in favor of using strcmp(1) to compare strings against the empty string
('').
When invoked incorrectly, a debug message will be printed and the program will
exit with the appropriate sysexits.h(3) error code.
.SH BUGS
There's no way of knowing which argument failed the test without re-testing
Theres no way of knowing which argument failed the test without re-testing
arguments individually.
.PP
If a character in a string isn't valid ASCII str will exit unsuccessfully.
.SH AUTHOR

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@ -1,5 +1,5 @@
.\" Copyright (c) 20232024 DTB <trinity@trinity.moe>
.\" Copyright (c) 2023 Emma Tebibyte <emma@tebibyte.media>
.\" Copyright (c) 20232024 Emma Tebibyte <emma@tebibyte.media>
.\"
.\" This work is licensed under CC BY-SA 4.0. To see a copy of this license,
.\" visit <http://creativecommons.org/licenses/by-sa/4.0/>.
@ -18,26 +18,27 @@ strcmp
.SH DESCRIPTION
Strcmp checks whether the given strings are the same.
Strcmp exits successfully if the strings are identical. Otherwise, strcmp exits
with the value 1 if an earlier string has a greater byte value than a later
string (e.g.
Check whether string arguments are the same.
.SH DIAGNOSTICS
The program will exit successfully if the strings are identical. Otherwise, it
exits with the value 1 if an earlier string has a greater byte value than a
later string (e.g.
.R strcmp b a
)
and 255 if an earlier string has a lesser byte value (e.g.
.R strcmp a b
).
.SH DIAGNOSTICS
Strcmp will print an error message and exit unsuccessfully with a status
described in sysexits(3) if used incorrectly (given less than two operands).
When invoked incorrectly, a debug message will be printed and the program will
exit with the appropriate sysexits.h(3) error code.
.SH UNICODE
Strcmp will exit unsuccessfully if the given strings are not identical;
Unicode strings may need to be normalized if the intent is to check visual
similarity and not byte similarity.
The program will exit unsuccessfully if the given strings are not identical;
therefore, Unicode strings may need to be normalized if the intent is to check
visual similarity and not byte similarity.
.SH RATIONALE
@ -45,7 +46,7 @@ The traditional tool for string comparisons in POSIX and other Unix shells has
been test(1). This tool also handles integer comparisons and file scrutiny.
These parts of its functionality have been broken out into multiple utilities.
Strcmps functionality may be performed on a POSIX-compliant system with
This programs functionality may be performed on a POSIX-compliant system with
test(1p).
.SH AUTHOR

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@ -1,4 +1,5 @@
.\" Copyright (c) 2024 DTB <trinity@trinity.moe>
.\" Copyright (c) 2024 Emma Tebibyte <emma@tebibyte.media>
.\"
.\" This work is licensed under CC BY-SA 4.0. To see a copy of this license,
.\" visit <http://creativecommons.org/licenses/by-sa/4.0/>.
@ -20,46 +21,51 @@ swab
.SH USAGE
Swab swaps the latter and former halves of a block of bytes.
Swap the latter and former halves of a block of bytes.
.SH OPTIONS
.B -f
.RS
Ignore system call interruptions.
.RE
.B -w
.RS
Configures the word size; that is, the size in bytes of the block size
on which to operate. By default the word size is 2. The word size must be
cleanly divisible by 2, otherwise the block of bytes being processed can't be
halved.
.RE
.SH EXAMPLES
The following sh(1p) line:
.RS
.R printf 'hello world!\n' | swab
.RE
Produces the following output:
.RS
.R ehll oowlr!d
.SH OPTIONS
The
.B -f
option ignores system call interruptions.
.PP
The
.B -w
option configures the word size; that is, the size in bytes of the block size
on which to operate. By default the word size is 2. The word size must be
cleanly divisible by 2, otherwise the block of bytes being processed can't be
halved.
.RE
.SH DIAGNOSTICS
If an error is encountered in input, output, or invocation, a diagnostic
message will be written to standard error and swab will exit with the
appropriate status from sysexits.h(3).
In the event of an error, a debug message will be printed and the program will
exit with the appropriate sysexits.h(3) error code.
.SH RATIONALE
Swab was modeled after the
This program was modeled and named after the
.R conv=swab
functionality specified in the POSIX dd utility but additionally allows the
word size to be configured.
.PP
Swab is useful for fixing the endianness of binary files produced on other
machines.
functionality specified in the dd(1p) utility. It additionally allows the word
size to be configured.
This functionality is useful for fixing the endianness of binary files produced
on other machines.
.SH COPYRIGHT

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@ -1,5 +1,5 @@
.\" Copyright (c) 2022, 2024 DTB <trinity@trinity.moe>
.\" Copyright (c) 2023 Emma Tebibyte <emma@tebibyte.media>
.\" Copyright (c) 20232024 Emma Tebibyte <emma@tebibyte.media>
.\"
.\" This work is licensed under CC BY-SA 4.0. To see a copy of this license,
.\" visit <http://creativecommons.org/licenses/by-sa/4.0/>.
@ -12,14 +12,13 @@ true \(en do nothing, successfully
.SH DESCRIPTION
True does nothing regardless of operands or standard input.
True will always return an exit code of 0.
Do nothing regardless of operands or standard input.
An exit code of 0 will always be returned.
.SH RATIONALE
True exists for the construction of control flow and loops based on a success.
True functions as described in POSIX.1-2017.
In POSIX.1-2017, true(1p) exists for the construction of control flow and loops
based on a success. This implementation functions as described in that standard.
.SH AUTHOR