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Full Discussion: Command syntax error in cron
Top Forums UNIX for Advanced & Expert Users Command syntax error in cron Post 303015420 by MadeInGermany on Wednesday 4th of April 2018 03:33:52 PM
Old 04-04-2018
The % character is magic in crontab, one needs to backslash-escape it.
Within ' ' one needs to put the \% outside, for example
Code:
echo 'this is a % sign'

must become
Code:
echo 'this is a '\%' sign'

in order to work with crontab (and still work outside crontab).
Here is no need to escape the + and Y, so simply omit the ' ' and have \%
Code:
44 11 * * * { dt=`/usr/gnu/bin/date +\%Y`; echo "DT=$dt"; }

(And there is no need for the { } braces.)
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bcrontab(1)						      General Commands Manual						       bcrontab(1)

NAME
bcrontab - Manage users crontab files SYNOPSIS
bcrontab [ -u user ] file bcrontab [ -u user ] { -l | -r | -e } DESCRIPTION
bcrontab interfaces with the bcron-spool daemon to manage crontab files in the privileged spool directory. OPTIONS
-u user Tell bcron-spool that we are acting on behalf of the named user. bcron-spool will only accept the username if bcrontab is running as either root or the same user ID as the named user. -l List the cronab crontab to standard output. -r Remove the user's crontab. -e Edit the current crontab. ENVIRONMENT
VISUAL If this is set, it is used as the editor to invoke to edit a crontab. EDITOR If $VISUAL is not set and this is, it is used as the editor to invoke to edit a crontab. If neither are set, /bin/vi is used. BCRON_SOCKET The path to the named socket used to communicate with bcron-spool. Defaults to /var/run/bcron-spool. LOGNAME USER These two variables are used, in order, to determine the user name invoking the program. One must be set if the -u option is not used. FILES
bcrontab tries to writes a temporary file into the current directory, and then into /tmp if that fails, in order to edit the current crontab. SEE ALSO
bcron-spool(8), crontab(5) AUTHOR
Bruce Guenter <bruceg@em.ca> bcrontab(1)
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