Commands using ls (515)

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

Install pip with Proxy
Installs pip packages defining a proxy

awk change field separator
GNU Awk 3.1.4

download a sequence of vim patch
Seq allows you to define printf like formating by specified with -f, %03g is actually tells seq I got three digits, fill the blank digits with 0, and the range is from 176 to 240.

Video thumbnail
Faster thumbnail creation than '-itsoffset' $ffmpeg -itsoffset -4 -i test.avi -vcodec mjpeg -vframes 1 -an -f rawvideo -s 320x240 test.jpg

Tar - Compress by excluding folders
If you give tar a list of filenames, it will not add the directories, so if you don't care about directory ownership or permissions, you can save some space. Tar will create directories as necessary when extracting. This command is limited by the maximum supported size of the argument list, so if you are trying to tar up the whole OS for instance, you may just get "Argument list too long".

Recursive Ownership Change
Changing files ownership in a directory recursivley from a user to another

Console clock

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

Group OR'd commands where you expect only one to work
Something to stuff in an alias when you are working in multiple environments. The double-pipe OR will fall through until one of the commands succeeds, and the rest won't be executed. Any STDERR will fall out, but the STDOUT from the correct command will bubble out of the parenthesis to the less command, or some other command you specify.


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