Commands tagged /dev/urandom (6)

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list files recursively by size

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"

check open ports without netstat or lsof

Recursive Search and Replace
Finds the string in every file in an entire directory and all its subdirectories and replaces it with a new string. Especially useful when changing a machine's IP address or hostname - run it on /etc.

connect to all screen instances running
connects to all the screen instances running.

Gets the english pronunciation of a phrase
Usage examples: say hello say "hello world" say hello+world

View all images
So you are in directory with loads of pictures laying around and you need to quickly scan through them all

BourneShell: Go to previous directory
cd - would return to the previous directory of your cd command. NB: previous dir is always stored in $OLDPWD variable.

Copy/move a bunch of files to dot files and back

Block all IPv4 addresses that has brute forcing our ssh server
For ipv6 use: grep -oE "\b([0-9A-Fa-f]{1,4}:){7}[0-9A-Fa-f]{1,4}\b"


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