Commands tagged cp (27)

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

random xkcd comic
i sorta stole this from http://www.shell-fu.org/lister.php?id=878#MTC_form but it didn't work, so here it is, fixed. --- updated to work with jpegs, and to use a fancy positive look behind assertion.

list any Linux files without users or groups
suspicious/anomalous ownership may indicate system breach; should return no results

Using NMAP to check if a port is open or close
Using NMAP to check to see if port 22(SSH) is open on servers and network devices.

Console clock
Shows a simple clock in the console -t param removes the watch header Ctrl-c to exit

xargs for builtin bash commands
Similar to xargs -i, but works with builtin bash commands (rather than running "bash -c ..." through xargs)

Print CPU load in percent
Faster then all other commands here at cmdlinefu with the same purpose.

Recursively touch all files and subdirectories

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" }

List open TCP/UDP ports


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