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| author | Lars Wirzenius <liw@liw.fi> | 2009-10-31 17:27:19 +0200 |
|---|---|---|
| committer | Lars Wirzenius <liw@liw.fi> | 2009-10-31 17:27:19 +0200 |
| commit | 422e5387d1ae37fa7669bcd784a8ed0a4b89d701 (patch) | |
| tree | 157ecf1381d9850e3e59a013defbd85d2b06b7e8 | |
| parent | 1b8cb1f72e578943534d3871cd2deeebdfb19e7b (diff) | |
| download | extrautils-422e5387d1ae37fa7669bcd784a8ed0a4b89d701.tar.gz | |
Wrote onerror manual page.
| -rw-r--r-- | onerror.1 | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/onerror.1 b/onerror.1 new file mode 100644 index 0000000..0c70e6d --- /dev/null +++ b/onerror.1 @@ -0,0 +1,32 @@ +.\" onerror.1 - manual page for the errno command +.\" Copyright (C) 2009 Lars Wirzenius +.\" +.\" This program is free software: you can redistribute it and/or modify +.\" it under the terms of the GNU General Public License as published by +.\" the Free Software Foundation, either version 3 of the License, or +.\" (at your option) any later version. +.\" +.\" This program is distributed in the hope that it will be useful, +.\" but WITHOUT ANY WARRANTY; without even the implied warranty of +.\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +.\" GNU General Public License for more details. +.\" +.\" You should have received a copy of the GNU General Public License +.\" along with this program. If not, see <http://www.gnu.org/licenses/>. +.\" +.TH ONERROR 1 +.SH NAME +onerror \- show command output if it failed +.SH SYNOPSIS +.B onerror +.I command +.IR arg ... +.SH DESCRIPTION +.B onerror +executes the command given on its command line. +It captures the standard output and error of the command, +and shows it only if the command failed. +The command failed if it returned a non-zero exit code. +.PP +This is handy for running commands via cron, when the commands +are chatty and have no way to tell them to be quiet unless they fail. |