One or a set of directives issued in the *nix environment to get information, change the state of something or to execute something. In other words: To gain an objective.

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Execute string result from shell script as a set of shell commands

I create a string result from my shell script and i want to execute it as a shell command. For example file_a is: user1@gmail.com user2@gmail.com script: awk '{print "mail -s \"welcome\"", $1}' ...
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Is there a command that outputs a line-numbered file starting the numbering at a specific line?

cat -n file outputs file with line numbering, but how can I specify at which line to start the numbering? Is there a command that can do that? I've thought of perhaps splitting the process into a few ...
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How to list available app commands in terminal

I'm using fluxbox and recently i wanted to start an application for video editing and i couldn't remember it's name. I usually run apps from terminal so I was wondering is there a way to list all ...
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Ignoring files that find cannnot search or open?

I searched for big files using this command on HP Unix: find . -type f -size +100000000c -exec ls -lrt {} \; The result came out somthing like this: -rw-rw-rw- 1 qa1wrk32 test 169263642 ...
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In UNIX, how to find the most commonly used commands in history of unix?

In UNIX, how to find the most commonly used commands in history?