Commands by Delian (1)

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Delete C style comments using vim

Comment out all lines in a file beginning with string

remove all snapshots from all virtual machines in vmware esx
Old snapshots can cause problems. It's best to remove them when finished. I use this script to remove all snapshots. The "while read" command is necessary because my vm names contain spaces. The "time" command reports how long the process runs.

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"

Display which distro is installed
Works on nearly all linux distros

online MAC address lookup

Printing multiple years with Unix cal command
print multiple increasing years using cal - calendar -. You can also try $seq Start Increment End

Rename files in batch

Quick access to ASCII code of a key

List all commands present on system
List all commands present on system by folder. $PATH contains all command folder separated by ':'. With ${PATH//:/ }, we change ':' in space and create a list of folder for ls command.


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