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King penguins

SoftPrayog provides information regarding software conforming to the Free and Open Source Software (FOSS) philosophy. You will find here articles on software engineering, tutorials and troubleshooting information regarding commands belonging to GNU/Linux based systems. The objective of SoftPrayog is to help in learning of the Linux operating system, its commands and provide software development resources.

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  • The cut command cuts sections of each line of input files and writes it on its standard output. It is mostly used for taking out a few columns from the input files.
  • bash idioms are tiny scripts, mostly one-liners, that accomplish a lot and can be used as building blocks in bigger scripts.
  • The tr command is a filter which reads the standard input, translates or deletes characters and writes the resulting text on its standard output.
  • The comm command compares two sorted files and gives output in three columns, containing the lines present only in the first file, the lines present only in the second file and the lines common to both files respectively.
  • The uniq command is a filter for finding unique lines in input. It reads input, suppresses duplicates and prints unique lines in its output.