nl <file>

Line numbering filter

Arguments

Name	Description
`file`	File(s) to number

Name	Description
`-b <type>`	Specify the logical page body lines to be numbered
`-d <delim>`	Specify the delimiter characters used to indicate the start of a logical page section in the input file. At most two characters may be specified; if only one character is specified, the first character is replaced and the second character remains unchanged
`-f <type>`	Specify the same as -b type except for logical page footer lines
`-h <type>`	Specify the same as -b type except for logical page header lines
`-i <incr>`	Specify the increment value used to number logical page lines
`-l <num>`	If numbering of all lines is specified for the current logical section using the corresponding -b a, -f a or -h a option, specify the number of adjacent blank lines to be considered as one. For example, -l 2 results in only the second adjacent blank line being numbered
`-n <format>`	Specify the line numbering output format
`-p`	Specify that line numbering should not be restarted at logical page delimiters
`-s <sep>`	Specify the characters used in separating the line number and the corresponding text line. The default sep setting is a single tab character
`-v <startnum>`	Specify the initial value used to number logical page lines; see also the description of the -p option
`-w <width>`	Specify the number of characters to be occupied by the line number; in case the width is insufficient to hold the line number, it will be truncated to its width least significant digits