automated terminal push

docs/Linux-Commands/.recycle/129-the-nl-command.md

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