UNIX – Page 3 – wp.jochen.hayek.name/blog-en

linux – how to ‘grep’ a continuous stream

Jun 7, 2013

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by

in CLI, Stack Overflow, UNIX, unix_utilities

http://stackoverflow.com/questions/7161821/how-to-grep-a-continuous-stream I had never heard of “stdbuf” before AIX grep has -u GNU grep has –line-buffered, its -u is not the same as AIX grep’s

logcheck – scans your logfiles and warns you

Apr 29, 2013

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by

johayek

in CLI, UNIX, unix_utilities

www.logcheck.org sourceforge.net/projects/logcheck/ linuxaria.com/pills/logcheck-scan-your-logs-and-warns-you – this is the nicest overview page Dependencies and restrictions: logcheck depends on logtail logtail runs on exactly one file … … and only once on that file, as it keeps a sister file called logfile.offset improving this should actually be “easy”, e.g. keeping a sister file called logfile.offset.user Pros: abstracting resp. filtering…

AIX has a limit for cronjobs concurrently being run

Mar 8, 2013

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by

johayek

in AIX, UNIX

Sounds reasonable in a way. But it’s rather bad, if you are not aware of it, and your corporate OS Monitoring Services do not remind you of critical entries in the resp. cron log file. They may say something like: there is crontab entry, that did not get executed, because we exceeded the maximum number…