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UGU: Unix Guru Universe - Unix Tip #4592- October 7, 2025
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Unix Tip #4592- October 7, 2025
FORGET THE CRONTAB MAN
For some reason many admins forget the field order of the
crontab file and alway reference the man pages over-and-over.
Make your life easy. Just put the field definitions in
your crontab file and comment (#) the lines out so the
crontab file ignores it.
#minute (0-59),
#| hour (0-23),
#| | day of the month (1-31),
#| | | month of the year (1-12),
#| | | | day of the week (0-6 with 0=Sunday).
#| | | | | commands
0 2 * * 0,4 /etc/cron.d/logchecker
NOTE: All tips provided are USE AT YOUR OWN RISK. Tips are submitted
by various unix admins around the globe. UGU suggest you read and
test each tip in a non-volitile environment before placing into
production.
LAST 5 TIPS
4591
- POWER OF BACKQUOTES
4590
- PING THE HOST TABLE
4589
- A SHAMELESS PLUG
4588
- REPETITIVE TASKS WITH XARGS
4587
- Suppose we want to check whether the web server is running or
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