Simple disk space checker
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ruby (1.8+)
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can execute “df -k”
gem install dsck
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dsck2mail - sample shell wrapper script for crontab.
See “rd2 dsck” or “dsck -h” for details.
dsck [-Vhv] [-c config | global_threshold | /mount/point threshold]...
- -V,
--version -
Show version
- -h,
--help -
Show this message
- -v,
--verbose -
Verbose output. Multiple -v to increase verbosity
- -q,
--quiet -
Quiet output. Multiple -q to decrease verbosity
- -s,
--summary -
Show summary report
- -r,
--report -
Show detail report
- -e,
--errors-only -
Suppress “-r” and “-s” when nothing to alert
- -c conf,
--config=conf -
Specify config file (arguments prevail over config)
If both of “-s” or “-r” are not specified, fallback to “-se”.
If argument is matched regex “/[0-9]+?/” or “nocheck”, it’s considerd as threshold.
Suffix character was consider as B=byte, K=KiloByte, M=Megabyte, G=GigaByte, T=TeraByte, P=PetaByte and %=Percent.
When string has no suffix character, longer than 3 will be treated as KiloByte, if not as percent.
This script alert when use% is over threshold of percentage or filesystem available size is under threshold of Byte and blocks.
Same as command line arguments.
Especially, after “#” until end-of-line is considerd as comment.
dsck -serv "95%" / 50M /tmp 5 /var/spool/squid nocheck
This means
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Verbose output (+1)
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Show summary and detail when error happened
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Global threshold is 95%, “/” is 50MByte, “/tmp” is 5%
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“/var/spool/squid” will not be checked