A list of unix commands

unix-commands.md

• column: create columns from text input
• tr: translate/substitute/delete input
• join: like a database join but for text
• comm: file comparison like a db join
• paste: put lines in a file next to each other
• rs: reshape arrays
• jot: generate data
• expand: replace spaces and/or tabs
• time: track time and resourcing
• watch: execute something on a schedule in realtime
• xargs: execute something on all inputs
• iftop: visually show network traffic
• jnettop a more detailed iftop
• htop: show system stats more powerfully
• xxd: manipulate files in hex
• mtr: powerful traceroute replacement
• mdfind: osx find replacement that uses spotlight
• brew: osx package manager
• df: disk free
• du: disk usage
• iotop: i/o stats
• dig: dns queries
• host: dns queries
• man ascii: lookup your ascii
• sshfs: mount a directory through ssh
• wget: get w’s
• dstat: powerful system statistics
• tmux: a better screen
• jq: command line JSON parsing
• pushd: push your pwd to a stack
• popd: pop pwd off your stack
• lsof: godlike system information [*]
• ncat: nmap-based replacement for nc
• fuser: kills locking processes
• vim: attack yourself
• tac: cat in reverse
• slurm: network interface stats
• rename: change spaces to underscores in names
• bmon: a simple bandwidth monitor
• open .: in osx, open finder in the current dir
• lsmod: show kernel modules
• printf: change the format of output
• timeout: execute something and kill it soon after
• disown: protect a job from disconnect
• fc: edit your last command in your editor and execute it
• sudo !!: repeat last command with sudo
• tee: send output to stdout as well
• pgrep: greps through processes
• pkill: kills processes based on search
• fmt: text formatter
• multitail: see logs in separate views
• bc: an interactive calculator language
• apropos: info on commands
• strace: the uber debug tool
• man units: interesting
• pstree: shows processes in a…well…tree
• pv: a progress bar for piped commands
• ddate: wtf
• zgrep: grep within compressed files
• zless: look at compressed files
• nping: nmap-based custom packet creation
• readlink: read values of links
• iostate: look at your disk i/o
• atop: another top
• split: break a file into pieces
• dd: disk writing
• ndiff: show differences in nmap scans
• ss: socket statistics (show apps using the Internet)