redirecting out of "at command" to file


 
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# 1  
Old 09-30-2008
redirecting out of "at command" to file

hi,
i am trying to redirect output of at command to a file.
`at -k -f "menu.sh" now + 2 minutes` > at_out

but when at_out is empty file. why? how can i do this.
actually i want to get job id and want to store it in file.
# 2  
Old 09-30-2008
The backticks expand to the output of the at command -- for a start, take those out.

Do you want to capture the output of the command you run, or the output from at (job number etc)? If the former, do something like

Code:
at -k now + 2 minutes <<HERE
menu.sh >at.out
HERE

If the latter, simply remove the backticks from your original command, and maybe add 2>&1 to the end; at least on Linux, the output from at is to standard error, not standard output.

Last edited by era; 09-30-2008 at 04:11 AM.. Reason: Add stderr hint
# 3  
Old 09-30-2008
i want output of at command, that is job id return by at command.

i tried to do same thing
like
at -k -f "menu.sh" now + 2 minutes 1>at_out

but still at_out file is empty. i used backticks because i am using script to do this thing.
# 4  
Old 09-30-2008
As hinted earlier, try 2>at_out if that didn't work.

In general, a command works the same in a script and on the command line; if you would not use backticks on the command line, don't use them in a script either.
# 5  
Old 09-30-2008
hey thank it worked.
now i have can get jod id from that file.
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