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#1
01-21-2013
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Crontab is not working in printf
hi, i have a script as: printf '%s -> %s\n' "$(date '+%Y-%m-%d %H:%M')" "$(/opt/gcsw/status -ne | fgrep 'State:2' | wc)" which gives output as: 2013-01-18 13:00 -> 80 480 6529 and it is working fine. now I want to put this into cronjob and write the output to a file in every 5 minutes: Code:
0,5,10,15,20,25,30,35,40,45,50,55 * * * * printf '%s -> %s\n' "$(date '+%Y-%m-%d %H:%M')" "$(/opt/gcsw/status -ne | fgrep 'State:2' | wc)" >> /var/tmp/gcsw/status.txt i want to see the output as: Code:
2013-01-18 13:00 -> 80 480 6529 2013-01-18 13:05 -> 85 480 6529 2013-01-18 13:10 -> 80 423 6329 2013-01-18 13:15 -> 71 460 6129 ... but file is not being updated  i think there is a problem with printf with cronjob. any help?
Last edited by gc_sw; 01-21-2013 at 04:18 AM.. |
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#2
01-21-2013
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Any error msgs? Pls keep in mind that processes launched by
cron run in a reduced environment, and perhaps in another shell, so are you sure all commands are on the
PATH var?
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#4
01-21-2013
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a) did you look into the
syslog files for
cron entries?
b) enter PATH=... into crontab (cf man crontab ) |
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#5
01-21-2013
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a) there is no entry related to cron in
syslog b) $PATH is defined as Code:
/usr/sbin:/usr/bin:/usr/ccs/bin:/usr/openwin/bin:/usr/dt/bin:/usr/platform/SUNW,Sun-Fire-T200/sbin:/opt/SUNWexplo/bin:/opt/SUNWsneep/bin:/opt/CTEact/bin can we modify the command without using printf ? |
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#6
01-21-2013
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The % character has a special meaning in crontab entries. Code:
man crontab ... You need to escape each % as \%; 'text1%text2' becomes 'text1'\%'text2' and "text3%text4" becomes "text3"\%"text4" (i.e. two strings with a \% in between). Code:
printf '%s -> %s\n' "$(date '+%Y-%m-%d %H:%M')" ... becomes Code:
printf \%'s -> '\%'s\n' "$(date '+'\%'Y-'\%'m-'\%'d '\%'H:'\%'M')" ... This is so ugly that you better put the original code in an executable script, and run the script from the crontab. Last edited by MadeInGermany; 01-21-2013 at 06:48 AM.. |
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Corona688 (01-21-2013), elixir_sinari (01-21-2013) | ||
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#7
01-21-2013
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i have created a file (/var/tmp/gcsw/script.sh) and write: Code:
printf '%s -> %s\n' "$(date '+%Y-%m-%d %H:%M')" "$(/opt/gcsw/gwstatus -ne | fgrep 'State:2' | wc)" >> /var/tmp/gcsw/status.txt and created a cronjob as: Code:
0,5,10,15,20,25,30,35,40,45,50,55 * * * * /var/tmp/gcsw/script.sh but output /var/tmp/gokhan/status.txt is not correct. so cronjob is not working  PS: when I manually run: Code:
printf '%s -> %s\n' "$(date '+%Y-%m-%d %H:%M')" "$(/opt/gcsw/gwstatus -ne | fgrep 'State:2' | wc)" >> /var/tmp/gcsw/status.txt it is successfully OK. |
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