Commands tagged md5 (15)

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Using numsum to sum a column of numbers.
if you, like me, do not have the numsum, this way can do the same.

Find broken symlinks
This is much safer than using -L, because it will not follow links that point to places outside the target directory subtree (CWD, in this case). See here for explanation: http://unix.stackexchange.com/a/38691/9382

Show CPU usage for EACH cores

start a VNC server for another user

fork performance test
grabbed from Andrew Aylett post: http://superuser.com/questions/133313/can-i-speed-up-cygwins-fork

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" }

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"

Find the package that installed a command

Update all packages installed via homebrew

umount --rbind mount with submounts
Original: https://bugzilla.redhat.com/show_bug.cgi?id=194342


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