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Full Discussion: replace spaces/tabs with delimiter |
Top Forums Shell Programming and Scripting replace spaces/tabs with delimiter | Post 302511215 by bakunin on Wednesday 6th of April 2011 07:09:24 AM
Old 04-06-2011
Quote:
Originally Posted by dvah
I'm looking for a command that replaces spaces/tabs with pipe symbol
What about consecutive spaces/tabs? One pipe symbol for any or one for each sequence?

First case:
Code:
sed 's/[<spc><tab>]/|/g' /path/to/source > /path/to/target

Second case:
Code:
sed 's/[<spc><tab>][<spc><tab>]*/|/g' /path/to/source > /path/to/target

Quote:
Originally Posted by dvah
and store the result to the same file instead of routing it to another file.
This cannot be done with any stream-oriented tool (sed, awk, ...). Just move the result file in place of the source file afterwards:

Code:
sed '<somecommand>' /path/to/source > /path/to/target
mv /path/to/target /path/to/source

Replace "<spc>" and "<tab>" with literal space and tab characters in the above code.

I hope this helps.

bakunin
 

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LEARN ABOUT CENTOS

expand

EXPAND(1)							   User Commands							 EXPAND(1)

NAME

       expand - convert tabs to spaces

SYNOPSIS

       expand [OPTION]... [FILE]...

DESCRIPTION

       Convert tabs in each FILE to spaces, writing to standard output.  With no FILE, or when FILE is -, read standard input.

       Mandatory arguments to long options are mandatory for short options too.

       -i, --initial
	      do not convert tabs after non blanks

       -t, --tabs=NUMBER
	      have tabs NUMBER characters apart, not 8

       -t, --tabs=LIST
	      use comma separated list of explicit tab positions

       --help display this help and exit

       --version
	      output version information and exit

       GNU coreutils online help: <http://www.gnu.org/software/coreutils/> Report expand translation bugs to <http://translationproject.org/team/>

AUTHOR

       Written by David MacKenzie.

COPYRIGHT

       Copyright (C) 2013 Free Software Foundation, Inc.  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
       This is free software: you are free to change and redistribute it.  There is NO WARRANTY, to the extent permitted by law.

SEE ALSO

       unexpand(1)

       The  full documentation for expand is maintained as a Texinfo manual.  If the info and expand programs are properly installed at your site,
       the command

	      info coreutils 'expand invocation'

       should give you access to the complete manual.

GNU coreutils 8.22						     June 2014								 EXPAND(1)
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