sed command

rharris72 · 11-19-2005, 05:56 PM

i am trying to help a buch of guys edit files for gaming servers using questions user input then sed command but if they put a space into the sting it fails can any one help

echo "Please give server name "

read name
sed s/clan/$name/g server.cfg > cfg.cfg

if they dont type spaces its fine

as soon as say they type "clan server"

the script fails is there a way of letting them use spaces
as bit of a pain in the rear can only use one word or a long sentence with no spaces

shanenin · 11-19-2005, 06:41 PM

you need to enclose your sed command in quotes

Code:

sed "s/clan/$name/g" server.cfg > cfg.cfg

rharris72 · 11-20-2005, 02:46 AM

thanks such a simple answer and work boy do i feel stupid lol

/bin/bash · 11-20-2005, 05:21 AM

http://main.rtfiber.com.tw/~changyj/sed/

eddiebaby1023 · 11-20-2005, 07:57 AM

Quote:

Originally posted by rharris72
thanks such a simple answer and work boy do i feel stupid lol

Don't feel stupid, lots of people don't seem to know how to use quotes - they just throw them in until things seem to work. Time invested in learning how to use single and double quotes properly will repay you many times over in saved time when you get it right first time. As an example, see the difference in the following:

Code:

VAR="a     b          c                         d"
echo $VAR
echo "$VAR"
echo '$VAR'

rharris72 · 11-20-2005, 02:24 PM

ok thanks do you also know how i can soft or hard link folders so i can have say one folder with main game files in and another with the links in to the folder plus the server.cfg file for there individual server

i know im asking alot but hey i'm learning fast

thanks

/bin/bash · 11-20-2005, 08:26 PM

Quote:

do you also know how i can soft or hard link folders so i can have say one folder with main game files in and another with the links in to the folder plus the server.cfg file for there individual server

lndir

Code:

NAME
       lndir  -  create a shadow directory of symbolic links to another direc-
       tory tree

SYNOPSIS
       lndir [ -silent ] [ -ignorelinks ] [ -withrevinfo ] fromdir [ todir ]

DESCRIPTION
       The lndir program makes  a  shadow  copy  todir  of  a  directory  tree
       fromdir,  except  that  the shadow is not populated with real files but
       instead with symbolic links pointing at the real files in  the  fromdir
       directory tree.  This is usually useful for maintaining source code for
       different machine architectures.  You create a  shadow  directory  con-
       taining  links  to the real source, which you will have usually mounted
       from a remote machine.  You can build  in  the  shadow  tree,  and  the
       object files will be in the shadow directory, while the source files in
       the shadow directory are just symlinks to the real files.