Get count of lines in scripts (shell)

If you have tried to get the count of lines in file, the you would know about “nl” or “wc…

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bash – refer the first parameter from last command quickly

To refer to first parameter from the last command quickly, you can use !^ Note: This can also be referred…

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bash refer parameters from the current command

In bash you can use !# to refer to any parameter from the current command, example: mv ak amit.!#:1.txt ls…

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