Diff for "BashFAQ/043"

Differences between revisions 1 and 4 (spanning 3 versions)

Why does my crontab job fail? 0 0 * * * some command > /var/log/mylog.`date +%Y%m%d`

In many versions of crontab, the percent sign (%) is treated specially, and therefore must be escaped with backslashes.

0 0 * * * some command > /var/log/mylog.`date +\%Y\%m\%d`

See your system's manual (crontab(5) or crontab(1)) for details. Note: on systems which split the crontab manual into two parts, you may have to type man 5 crontab or man -s 5 crontab to read the part you need.

-  ⇤ ← Revision 1 as of 2007-05-02 23:33:44 → 
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+   ← Revision 4 as of 2008-11-22 16:42:31 → ⇥
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== Why does my crontab job fail?  0 0 * * * some command > /var/log/mylog.`date +%Y%m%d` ==

In many versions of {{{crontab}}}, the percent sign (%) is treated specially, and therefore must be escaped with backslashes.

{{{
0 0 * * * some command > /var/log/mylog.`date +\%Y\%m\%d`
}}}

See your system's manual ({{{crontab(5)}}} or {{{crontab(1)}}}) for details.  ''Note: on systems which split the {{{crontab}}} manual into two parts, you may have to type {{{man 5 crontab}}} or {{{man -s 5 crontab}}} to read the part you need.''