Commands by YardApe (2)

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Remind yourself to leave in 15 minutes
If you spend most of your time in front of the terminal, leave is a useful reminder. Leave can have absolute form: leave 1555 reminds you to leave at 3:55PM

RTFM function
RTFMFTW.

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"

Scrape commands from commandline fu's 1st page
just bored here at work ... if your are daring ... add '| bash' .... enjoy require 'ruby'

intersection between two files

Rotate a pdf by 90 degrees CW

Huh? Where did all my precious space go ?
Sort ls output of all files in current directory in ascending order Just the 20 biggest ones: $ ls -la | sort -k 5bn | tail -n 20 A variant for the current directory tree with subdirectories and pretty columns is: $ find . -type f -print0 | xargs -0 ls -la | sort -k 5bn | column -t And finding the subdirectories consuming the most space with displayed block size 1k: $ du -sk ./* | sort -k 1bn | column -t

Print a row of 50 hyphens
This feels more intuitive to me.

get a process list by listen port

Get listening ports on a localhost
ss is a tool that will help you to get all kinds of useful information about the current sockets on a localhost. You can also get the uid of the daemons process using the flag: $ ss -le

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