Commands by cwchentw (0)

  • bash: commands not found

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Delete a file/directory walking subdirectories (bash4 or zsh)

Find the package that installed a command

check open ports without netstat or lsof

Reads a CD/DVD and creates an dvdisaster iso image with the advanced RS02 method.

cat stdout of multiple commands
Concatenate the stdout of multiple commands.

Generate random password
Generates password consisting of alphanumeric characters, defaults to 16 characters unless argument given.

Selecting a random file/folder of a folder
Also looks in subfolders

Record active input of soundcard to file.wav
You'll need sox package in Debian/Ubuntu.

Multi-thread any command
For instance: $ find . -type f -name '*.wav' -print0 |xargs -0 -P 3 -n 1 flac -V8 will encode all .wav files into FLAC in parallel. Explanation of xargs flags: -P [max-procs]: Max number of invocations to run at once. Set to 0 to run all at once [potentially dangerous re: excessive RAM usage]. -n [max-args]: Max number of arguments from the list to send to each invocation. -0: Stdin is a null-terminated list. I use xargs to build parallel-processing frameworks into my scripts like the one here: http://pastebin.com/1GvcifYa

check open ports without netstat or lsof


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