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csplit

Split a file into pieces. This generates files named "xx00", "xx01", and so on. More information: https://www.gnu.org/software/coreutils/csplit.

  • Split a file at lines 5 and 23:

csplit {{file}} {{5}} {{23}}

  • Split a file every 5 lines (this will fail if the total number of lines is not divisible by 5):

csplit {{file}} {{5}} {*}

  • Split a file every 5 lines, ignoring exact-division error:

csplit -k {{file}} {{5}} {*}

  • Split a file at line 5 and use a custom prefix for the output files:

csplit {{file}} {{5}} -f {{prefix}}

  • Split a file at a line matching a regular expression:

csplit {{file}} /{{regular_expression}}/