Commands tagged Ubuntu (90)

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

Delete line number 10 from file
Very useful when the ssh key of a host has changed and ssh refuses to connect to the machine, while giving you the line number that has changed in ~/.ssh/known_hosts.

Rename file to same name plus datestamp of last modification.
Note that the -i will not help in a script. Proper error checking is required.

Aptitude pattern match
Could be dangerous, if you have many packages all beginning with 'foo' or 'bar'. This will easily remove them all from your system.

Check the status of a network interface

Remove Thumbs.db files from folders
An alternative which uses the advanced zsh globbing (pattern matching)

Deal with dot files safely

gpg decrypt several files
Change directory (cd) to the directory where all your encrypted files are placed, and then run the command - then you are asked to insert your secret gpg password - ubuntu 8.04

quickly formats a fat partition. usefull for flash drives

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


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