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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 19:43:11 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 19:43:11 +0000 |
commit | fc22b3d6507c6745911b9dfcc68f1e665ae13dbc (patch) | |
tree | ce1e3bce06471410239a6f41282e328770aa404a /upstream/mageia-cauldron/man1/env.1 | |
parent | Initial commit. (diff) | |
download | manpages-l10n-fc22b3d6507c6745911b9dfcc68f1e665ae13dbc.tar.xz manpages-l10n-fc22b3d6507c6745911b9dfcc68f1e665ae13dbc.zip |
Adding upstream version 4.22.0.upstream/4.22.0
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'upstream/mageia-cauldron/man1/env.1')
-rw-r--r-- | upstream/mageia-cauldron/man1/env.1 | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/upstream/mageia-cauldron/man1/env.1 b/upstream/mageia-cauldron/man1/env.1 new file mode 100644 index 00000000..c0c0a6df --- /dev/null +++ b/upstream/mageia-cauldron/man1/env.1 @@ -0,0 +1,129 @@ +.\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.48.5. +.TH ENV "1" "April 2022" "GNU coreutils 9.1" "User Commands" +.SH NAME +env \- run a program in a modified environment +.SH SYNOPSIS +.B env +[\fI\,OPTION\/\fR]... [\fI\,-\/\fR] [\fI\,NAME=VALUE\/\fR]... [\fI\,COMMAND \/\fR[\fI\,ARG\/\fR]...] +.SH DESCRIPTION +.\" Add any additional description here +.PP +Set each NAME to VALUE in the environment and run COMMAND. +.PP +Mandatory arguments to long options are mandatory for short options too. +.TP +\fB\-i\fR, \fB\-\-ignore\-environment\fR +start with an empty environment +.TP +\fB\-0\fR, \fB\-\-null\fR +end each output line with NUL, not newline +.TP +\fB\-u\fR, \fB\-\-unset\fR=\fI\,NAME\/\fR +remove variable from the environment +.TP +\fB\-C\fR, \fB\-\-chdir\fR=\fI\,DIR\/\fR +change working directory to DIR +.TP +\fB\-S\fR, \fB\-\-split\-string\fR=\fI\,S\/\fR +process and split S into separate arguments; +used to pass multiple arguments on shebang lines +.TP +\fB\-\-block\-signal\fR[=\fI\,SIG\/\fR] +block delivery of SIG signal(s) to COMMAND +.TP +\fB\-\-default\-signal\fR[=\fI\,SIG\/\fR] +reset handling of SIG signal(s) to the default +.TP +\fB\-\-ignore\-signal\fR[=\fI\,SIG\/\fR] +set handling of SIG signal(s) to do nothing +.TP +\fB\-\-list\-signal\-handling\fR +list non default signal handling to stderr +.TP +\fB\-v\fR, \fB\-\-debug\fR +print verbose information for each processing step +.TP +\fB\-\-help\fR +display this help and exit +.TP +\fB\-\-version\fR +output version information and exit +.PP +A mere \- implies \fB\-i\fR. If no COMMAND, print the resulting environment. +.PP +SIG may be a signal name like 'PIPE', or a signal number like '13'. +Without SIG, all known signals are included. Multiple signals can be +comma\-separated. +.SH OPTIONS +.SS "\-S/\-\-split\-string usage in scripts" +The +.B \-S +option allows specifying multiple parameters in a script. +Running a script named +.B 1.pl +containing the following first line: +.PP +.RS +.nf +#!/usr/bin/env \-S perl \-w \-T +\&... +.fi +.RE +.PP +Will execute +.B "perl \-w \-T 1.pl". +.PP +Without the +.B '\-S' +parameter the script will likely fail with: +.PP +.RS +.nf +/usr/bin/env: 'perl \-w \-T': No such file or directory +.fi +.RE +.PP +See the full documentation for more details. +.PP +.SS "\-\-default-signal[=SIG]" usage +This option allows setting a signal handler to its default +action, which is not possible using the traditional shell +trap command. The following example ensures that seq +will be terminated by SIGPIPE no matter how this signal +is being handled in the process invoking the command. + +.PP +.RS +.nf +sh \-c 'env \-\-default-signal=PIPE seq inf | head \-n1' +.fi +.RE +.PP +.SH NOTES +POSIX's \fBexec\fP(3p) pages says: +.RS +"many existing applications wrongly assume that they start with certain +signals set to the default action and/or unblocked.... Therefore, it is best +not to block or ignore signals across execs without explicit reason to do so, +and especially not to block signals across execs of arbitrary (not closely +cooperating) programs." +.RE +.SH AUTHOR +Written by Richard Mlynarik, David MacKenzie, and Assaf Gordon. +.SH "REPORTING BUGS" +GNU coreutils online help: <https://www.gnu.org/software/coreutils/> +.br +Report any translation bugs to <https://translationproject.org/team/> +.SH COPYRIGHT +Copyright \(co 2022 Free Software Foundation, Inc. +License GPLv3+: GNU GPL version 3 or later <https://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" +\fBsigaction\fP(2), \fBsigprocmask\fP(2), \fBsignal\fP(7) +.PP +.br +Full documentation <https://www.gnu.org/software/coreutils/env> +.br +or available locally via: info \(aq(coreutils) env invocation\(aq |