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UNIX for Advanced & Expert Users
Inserting lines between specific other lines in a file
Post 303045119 by RudiC on Thursday 12th of March 2020 08:56:34 AM
03-12-2020
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Hi folks,
i need to insert the same set of lines between each line
input lines
111111
aaaaaa
333333
output should be
111111
1
2
3
aaaaaa
1
2
3
333333
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LEARN ABOUT REDHAT
nl
NL(1) FSF NL(1) NAME
nl - number lines of files SYNOPSIS
nl [OPTION]... [FILE]... DESCRIPTION
Write each FILE to standard output, with line numbers added. With no FILE, or when FILE is -, read standard input. Mandatory arguments to long options are mandatory for short options too. -b, --body-numbering=STYLE use STYLE for numbering body lines -d, --section-delimiter=CC use CC for separating logical pages -f, --footer-numbering=STYLE use STYLE for numbering footer lines -h, --header-numbering=STYLE use STYLE for numbering header lines -i, --page-increment=NUMBER line number increment at each line -l, --join-blank-lines=NUMBER group of NUMBER empty lines counted as one -n, --number-format=FORMAT insert line numbers according to FORMAT -p, --no-renumber do not reset line numbers at logical pages -s, --number-separator=STRING add STRING after (possible) line number -v, --first-page=NUMBER first line number on each logical page -w, --number-width=NUMBER use NUMBER columns for line numbers --help display this help and exit --version output version information and exit By default, selects -v1 -i1 -l1 -sTAB -w6 -nrn -hn -bt -fn. CC are two delimiter characters for separating logical pages, a missing second character implies :. Type \ for . STYLE is one of: a number all lines t number only nonempty lines n number no lines pREGEXP number only lines that contain a match for REGEXP FORMAT is one of: ln left justified, no leading zeros rn right justified, no leading zeros rz right justified, leading zeros AUTHOR
Written by Scott Bartram and David MacKenzie. REPORTING BUGS
Report bugs to <bug-coreutils@gnu.org>. COPYRIGHT
Copyright (C) 2002 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU- LAR PURPOSE. SEE ALSO
The full documentation for nl is maintained as a Texinfo manual. If the info and nl programs are properly installed at your site, the com- mand info nl should give you access to the complete manual. nl (coreutils) 4.5.3 February 2003 NL(1)