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Important scripts useful for a Linux system administrator

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I am a Linux system administrator and constantly find myself doing the same chores again and again. I need some scripts to make life easier. What are the most important scripts needed by a Linux system administrator? Ramesh While all the scripts provided below may be accurate, there may be much more advanced features available. […]
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Oneliners: Removing blank lines from a unix file

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Many of times I receive comma delimited files an they have blank lines after each record. I would like to use sed or awk. I need to remove all the blank lines from an input file and write into an output file.