Commands tagged bash (821)

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list files recursively by size

List the size (in human readable form) of all sub folders from the current location
Sorted in human readable format.

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"

tar.gz with gpg-encryption on the fly
Create a encrypted tar.gz file from a directory on the fly. The encryption is done by GPG with a public key. The resulting filename is tagged with the date of creation. Very usefull for encrypted snapshots of folders.

Twitpic upload and Tweet

Remove all files except list

How to run a command on a list of remote servers read from a file
The important thing to note in this command, is the "-n" flag.

Generate random valid mac addresses
Ruby version. Also, a perl version: $perl -e 'printf("%.2x.",rand(255))for(1..5);printf("%.2x\n",rand(255))'

Define a quick calculator function
defines a handy function for quick calculations from cli. once defined: $ ? 10*2+3

Convert ascii string to hex
If you're going to use od, here's how to suppress the labels at the beginning. Also, it doesn't output the \x, hence the sed command at the end. Remove it for space separated hex values instead


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