To find the uptime of each process-id of particular service or process

ps -o etime `pidof firefox` |grep -v ELAPSED | sed 's/\s*//g' | sed "s/\(.*\)-\(.*\):\(.*\):\(.*\)/\1d \2h/; s/\(.*\):\(.*\):\(.*\)/\1h \2m/;s/\(.*\):\(.*\)/\1m \2s/"

3
By: jsymonkj
2010-11-28 03:27:24

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What Others Think

Not bad, but I can shorten it (by 24 characters). Replace the grep -v with sed 1d. Then combine that, the whitespace sed and the main sed into one BIG command: ps -o etime `pidof firefox` | sed '1d;s/\s*//g;s/\(.*\)-\(.*\):\(.*\):\(.*\)/\1d \2h/;s/\(.*\):\(.*\):\(.*\)/\1h \2m/;s/\(.*\):\(.*\)/\1m \2s/'
flatcap · 391 weeks ago
with "=" ps rename header but if empty ps not show header line: ps -o etime= `pidof firefox` | sed 's/\s*//g;s/\(.*\)-\(.*\):\(.*\):\(.*\)/\1d \2h/;s/\(.*\):\(.*\):\(.*\)/\1h \2m/;s/\(.*\):\(.*\)/\1m \2s/'
robert · 391 weeks ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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