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443 B
443 B
nl
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}}