Commands by dkaliberda (2)

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If (and only if) the variable is not set, prompt users and give them a default option already filled in.
The read command reads input and puts it into a variable. With -i you set an initial value. In this case I used a known environment variable.

load changes without logging in and out vim
src: daily vim blog

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"

backs up at the date today

Save a file you edited in vim without the needed permissions (no echo)
Write a file you edited in Vim but that you do not have the permissions to write to (unless you use sudo.) Same as #1204 but without the echo to stdout that I find annoying.

Selecting a random file/folder of a folder
I used only shuf command.

Remove all files but one starting with a letter(s)
Remove everything in current directory except files starting with "ca".

Remove security limitations from PDF documents using ghostscript (for Windows)
#4345 also works under windows

Recover remote tar backup with ssh
Here how to recover the remote backup over ssh

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


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