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grep as a filter for your raw text based data

grep is a very useful and simple tools for a unix user to extract info from text based data files, command output, etc. grep always apply together with pipeline to simplified the data output we obtain...

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monitor custom programs with ps and watch

ps is a very useful tool to list all current running processes with various info such as CPU usage, memory usage, process status, process id etc. watch is another good tool to continuously execute some...

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