Commands tagged indent (12)

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Change every instance of OLD to NEW in file FILE
Very quick way to change a word in a file. I use it all the time to change variable names in my PHP scripts (sed -i 's/$oldvar/$newvar/g' index.php)

Get your outgoing IP address
should be very consistent cause it's google :-)

Delete all non-printing characters from a file
tr has some predefined sets of characters that are more convenient to use than characters codes

Monitor memory usage
Monitor with watch command and vmstat, memory usage

Add a Clock to Your CLI

First file editor for newbies
This command should be the first file-editing command for a newbie. It clears file.txt (cat), and asks for input until EOF is entered on its own line (not written to file.txt).

Rename files in batch

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"

Show database sql schema from Remote or Local database
After ssh into server, run this command to show all the table structure and schema.


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