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> A utility for numbering lines, either from a file, or from standard input.
Number non-blank lines in a file:
nl {file}
Read from standard output:
cat {file} | nl {options} -
Number only the lines with printable text:
nl -t {file}
Number all lines including blank lines:
nl -b a {file}
Number only the body lines that match a basic regular expression (BRE) pattern:
nl -b p'FooBar[0-9]' {file}
> Copyright © 2014—present the tldr-pages team and contributors.
> This work is licensed under the Creative Commons Attribution 4.0 International License (CC-BY).
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