33 lines
764 B
Markdown
33 lines
764 B
Markdown
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# The `nl` command
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The “nl” command enumerates lines in a file. A different way of viewing the contents of a file, the “nl” command can be very useful for many tasks.
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## Syntax
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```
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nl [ -b Type ] [ -f Type ] [ -h Type ] [ -l Number ] [ -d Delimiter ] [ -i Number ] [ -n Format ] [ -v Number ] [ -w Number ] [ -p ] [ -s Separator ] [ File ]
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```
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## Examples:
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1. To number all lines:
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```
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nl -ba chap1
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```
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2. Displays all the text lines:
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```
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[server@ssh ~]$ nl states
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1 Alabama
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2 Alaska
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3 Arizona
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4 Arkansas
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5 California
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6 Colorado
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7 Connecticut.
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8 Delaware
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```
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3. Specify a different line number format
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```
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nl -i10 -nrz -s:: -v10 -w4 chap1
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```
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You can name only one file on the command line. You can list the flags and the file name in any order.
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