Commands tagged memory (14)

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Compare an archive with filesystem
and you quickly know the files you changed

Calculate days on which Friday the 13th occurs (inspired from the work of the user justsomeguy)
Friday is the 5th day of the week, monday is the 1st. Output may be affected by locale.

ubuntu easter eggs

Twitpic upload and Tweet

Send an email from the terminal when job finishes
Might as well include the status code it exited with so you know right away if it failed or not.

Put a console clock in top right corner
A nice way to use the console in full screen without forget the current time. you can too add other infos like cpu and mem use.

Print the IPv4 address of a given interface

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" }

Remove security limitations from PDF documents using ghostscript (for Windows)
#4345 also works under windows

Get the header of a website


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