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diff --git a/doc/zdiff.1 b/doc/zdiff.1 new file mode 100644 index 0000000..bbcdc94 --- /dev/null +++ b/doc/zdiff.1 @@ -0,0 +1,139 @@ +.\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.49.2. +.TH ZDIFF "1" "January 2024" "zutils 1.13" "User Commands" +.SH NAME +zdiff \- decompress and compare two files line by line +.SH SYNOPSIS +.B zdiff +[\fI\,options\/\fR] \fI\,file1 \/\fR[\fI\,file2\/\fR] +.SH DESCRIPTION +zdiff compares two files and, if they differ, writes to standard output the +differences line by line. A hyphen '\-' used as a file argument means standard +input. If any file given is compressed, its decompressed content is used. +zdiff is a front end to the program diff and has the limitation that messages +from diff refer to temporary file names instead of those specified. +.PP +\&'zdiff \fB\-v\fR \fB\-V\fR' prints the version of the diff program used. +.PP +The formats supported are bzip2, gzip, lzip, xz, and zstd. +.PP +zdiff compares file1 to file2. The standard input is used only if file1 or +file2 refers to standard input. If file2 is omitted zdiff tries to compare +file1 with the corresponding uncompressed file (if file1 is compressed), and +then with the corresponding compressed files of the remaining formats until +one is found. +.PP +Exit status is 0 if inputs are identical, 1 if different, 2 if trouble. +Some options only work if the diff program used supports them. +.SH OPTIONS +.TP +\fB\-h\fR, \fB\-\-help\fR +display this help and exit +.TP +\fB\-V\fR, \fB\-\-version\fR +output version information and exit +.TP +\fB\-a\fR, \fB\-\-text\fR +treat all files as text +.TP +\fB\-b\fR, \fB\-\-ignore\-space\-change\fR +ignore changes in the amount of white space +.TP +\fB\-B\fR, \fB\-\-ignore\-blank\-lines\fR +ignore changes whose lines are all blank +.TP +\fB\-c\fR +use the context output format +.TP +\fB\-C\fR, \fB\-\-context=\fR<n> +same as \fB\-c\fR but use <n> lines of context +.TP +\fB\-d\fR, \fB\-\-minimal\fR +try hard to find a smaller set of changes +.TP +\fB\-E\fR, \fB\-\-ignore\-tab\-expansion\fR +ignore changes due to tab expansion +.TP +\fB\-i\fR, \fB\-\-ignore\-case\fR +ignore case differences +.TP +\fB\-M\fR, \fB\-\-format=\fR<list> +process only the formats in <list> +.TP +\fB\-N\fR, \fB\-\-no\-rcfile\fR +don't read runtime configuration file +.TP +\fB\-O\fR, \fB\-\-force\-format\fR=\fI\,[\/\fR<f1>][,<f2>] +force one or both input formats +.TP +\fB\-p\fR, \fB\-\-show\-c\-function\fR +show which C function each change is in +.TP +\fB\-q\fR, \fB\-\-brief\fR +output only whether files differ +.TP +\fB\-s\fR, \fB\-\-report\-identical\-files\fR +report when two files are identical +.TP +\fB\-t\fR, \fB\-\-expand\-tabs\fR +expand tabs to spaces in output +.TP +\fB\-T\fR, \fB\-\-initial\-tab\fR +make tabs line up by prepending a tab +.TP +\fB\-u\fR +use the unified output format +.TP +\fB\-U\fR, \fB\-\-unified=\fR<n> +same as \fB\-u\fR but use <n> lines of context +.TP +\fB\-v\fR, \fB\-\-verbose\fR +verbose mode (for \fB\-\-version\fR) +.TP +\fB\-w\fR, \fB\-\-ignore\-all\-space\fR +ignore all white space +.TP +\fB\-W\fR, \fB\-\-width=\fR<n> +output at most <n> print columns (for \fB\-y\fR) +.TP +\fB\-y\fR, \fB\-\-side\-by\-side\fR +output in two columns +.TP +\fB\-\-bz2=\fR<command> +set compressor and options for bzip2 format +.TP +\fB\-\-gz=\fR<command> +set compressor and options for gzip format +.TP +\fB\-\-lz=\fR<command> +set compressor and options for lzip format +.TP +\fB\-\-xz=\fR<command> +set compressor and options for xz format +.TP +\fB\-\-zst=\fR<command> +set compressor and options for zstd format +.PP +Valid formats for options '\-M' and '\-O' are 'bz2', 'gz', 'lz', 'xz', 'zst', +and 'un' for uncompressed. +.SH "REPORTING BUGS" +Report bugs to zutils\-bug@nongnu.org +.br +Zutils home page: http://www.nongnu.org/zutils/zutils.html +.SH COPYRIGHT +Copyright \(co 2024 Antonio Diaz Diaz. +License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl.html> +.br +This is free software: you are free to change and redistribute it. +There is NO WARRANTY, to the extent permitted by law. +.SH "SEE ALSO" +The full documentation for +.B zdiff +is maintained as a Texinfo manual. If the +.B info +and +.B zdiff +programs are properly installed at your site, the command +.IP +.B info zutils +.PP +should give you access to the complete manual. |