Commands by superedan (0)

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list block devices
Shows all block devices in a tree with descruptions of what they are.

remove execute bit only from files. recursively

Print just line 4 from a textfile
this method should be the fastest

Show the command line of a process that use a specific port (ubuntu)

ROT13 using the tr command

show how many regex you use in your vim today
i want to count how many regex code i have used in vim in a long time so i make a directory in svn host and post record to this directory of course i dont want to post manually so i worte a script to do that and this is the core thing to do

Show bash's function definitions you defined in .bash_profile or .bashrc
If you omit the function name, the command will display all definitions

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"

Are there any words in the English language that use at least half of the alphabet without repeating any letters?
This is the most straightforward approach: first regexp limits dictionary file to words with thirteen or more characters, second regexp discards any words that have a letter repeated. (Bonus challenge: Try doing it in a single regexp!)

Fill the screen with randomly colored lines
This one-liner fills the screen with randomly colored lines.

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