Show Packages from a Group
Show rpm packages of a group software rpm -qg “System Environment/Daemons”
Trim Image Edge
Use this command to cut off the edges off an image… convert -trim image.jpg output.jpg
Find Link Files
Use this command to find all the links in the current directory… find . -lname “*”
Locate Files With Names Matching A Regexp
You can use locate to find files with name that matches a said regexp… locate -i -r ‘\.jpg$’
A Shell Scirpt to Mount ISO files
A Shell Scirpt to Mount ISO files – call it using the command moustiso.sh ImageFile.iso. You need a folder called…
Delete Leading Whitespace Using Sed
Delete leading whitespace (spaces/tabs/etc) from beginning of each line. Same as yesterday’s command – but using sed cat file.txt |…
Delete Leading Whitespace
Delete leading whitespace (spaces/tabs/etc) from beginning of each line ruby -pe ‘gsub(/^\s+/, “”)’ < file.txt
Find files of a specific mime-type
Use this command to find files of a given mime-type. In this example, we are looking for video files… find…
Restrict Top to Current User’s Commands
Show only your processes in the top list using this command… top -u `whoami` OR top -u binnyva(your username)
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