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Watch active calls on an Asterisk PBX
Show active calls as the happen on an Asterisk server. Note that the Asterisk command (in single quotes) is formatted for Asterisk 1.6. Use the -n flag on the watch command to modify the refresh period (in seconds - default is 2 seconds).

add the result of a command into vi
':r!ls -l' results in listing the files in the current directory and paste it into vi

Generate binary sequence data

Split and join with split and cat.
`split -b 1k file` splits files into 1k chunks. Rejoin them with `cat x* > file`.

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

Simple top directory usage with du flips for either Linux or base Solaris
No need to type out the full OR clause if you know which OS you're on, but this is easy cut-n-paste or alias to get top ten directories by singleton. To avoid the error output from du -xSk you could always 2>/dev/null but you might miss relevant STDERR.

Rename files in batch

Twitpic upload and Tweet

Check if your desired password is already available in haveibeenpwnd database. This command uses the API provided by HIBP

Change a specific value in a path
Awk replaces the value of a specific field while retaining the field separator "/" .


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