Commands by smm (1)

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Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

vi - Change only whole words exactly matching 'http' to 'git'; ask for confirmation.
http://vim.wikia.com/wiki/Search_and_replace github anda limando feo ....: https://groups.google.com/forum/?fromgroups#!topic/symfony2/YL1mo_cz4Ms

Convert seconds to [DD:][HH:]MM:SS
Converts any number of seconds into days, hours, minutes and seconds. sec2dhms() { declare -i SS="$1" D=$(( SS / 86400 )) H=$(( SS % 86400 / 3600 )) M=$(( SS % 3600 / 60 )) S=$(( SS % 60 )) [ "$D" -gt 0 ] && echo -n "${D}:" [ "$H" -gt 0 ] && printf "%02g:" "$H" printf "%02g:%02g\n" "$M" "$S" }

Generate the CPU utilization report
Generated the CPU utilization stats with 5 lines /every 2 seconds. Needs sysstat package to be installed prior to use sar.

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Replace strings in text
-e is the script function, it performs search and replace like vi, and -i is the edit the file in place.

Remove today's Debian installed packages
Adapted using your usefull comments !

Show what PID is listening on port 80 on Linux

Find usb device in realtime
Using this command you can track a moment when usb device was attached.


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