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Full Discussion: Not able to pass string with spaces in shell
Top Forums Shell Programming and Scripting Not able to pass string with spaces in shell Post 302408380 by patilrakesh1984 on Monday 29th of March 2010 10:34:50 AM
Old 03-29-2010
Hi and sorry
Thnaks for letting me know the system present at your end, I will keep this in mind from next time.

---------- Post updated at 08:04 PM ---------- Previous update was at 07:59 PM ----------

Thanks Methyl! But I want to pass about 50 brand text in this file and hence was trying to pass them from outside, if it is not posible to pass a sentence with SHELL then I will have to use the method you have suggested but it really will not shorten the script which i want to.

Thanks & Regards,
Rakesh Patil
<email address removed>

Quote:
Originally Posted by methyl
The problem throughout this thread is the single quote characters. You cannot nest single quote characters. They are treated in pairs. In fact the middle two single quotes are not required in any of the sed commands posted.

sed 's/brdtxt/'$3'/g'
Thus the substitition parameter $3 is left outside of the scope of either pair of quotes. It sort of works until there are space characters in $3 - then the sed command errors.

Code:
Consider these simplified examples:

echo "brdtxt"|sed 's/brdtxt/'Banana'/g'
Banana

echo "brdtxt"|sed 's/brdtxt/'Power Tools or Accessories'/g'
sed: Function s/brdtxt/Power cannot be parsed.


Now we remove the middle two single quote characters and it starts working.

echo "brdtxt"|sed 's/brdtxt/Power Tools or Accessories/g'
Power Tools or Accessories

echo "brdtxt"|sed 's/brdtxt/"Power Tools or Accessories"/g'
"Power Tools or Accessories"

Last edited by vgersh99; 03-29-2010 at 12:10 PM.. Reason: email addressed removed
 

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LEARN ABOUT LINUX

shtool-subst

SHTOOL-SUBST.TMP(1)					      GNU Portable Shell Tool					       SHTOOL-SUBST.TMP(1)

NAME

       shtool-subst - GNU shtool sed(1) substitution operations

SYNOPSIS

       shtool subst [-v|--verbose] [-t|--trace] [-n|--nop] [-w|--warning] [-q|--quiet] [-s|--stealth] [-i|--interactive] [-b|--backup ext]
       [-e|--exec cmd] [-f|--file cmd-file] [file] [file ...]

DESCRIPTION

       This command applies one or more sed(1) substitution operations to stdin or any number of files.

OPTIONS

       The following command line options are available.

       -v, --verbose
	   Display some processing information.

       -t, --trace
	   Enable the output of the essential shell commands which are executed.

       -n, --nop
	   No operation mode. Actual execution of the essential shell commands which would be executed is suppressed.

       -w, --warning
	   Show warning on substitution operation resulting in no content change on every file. The default is to show a warning on substitution
	   operations resulted in no content change on all files.

       -q, --quiet
	   Suppress warning on substitution operation resulting in no content change.

       -s, --stealth
	   Stealth operation. Preserve timestamp on file.

       -i, --interactive
	   Enter interactive mode where the user has to approve each operation.

       -b, --backup ext
	   Preserve backup of original file using file name extension ext.  Default is to overwrite the original file.

       -e, --exec cmd
	   Specify sed(1) command directly.

       -f, --file cmd-file
	   Read sed(1) command from file.

EXAMPLE

	#   shell script
	shtool subst -i -e 's;(c) ([0-9]*)-2000;(c) 1-2001;' *.[ch]

	#    RPM spec-file
	%install
	    shtool subst -v -n 
		-e 's;^(prefix=).*;1 $RPM_BUILD_ROOT%{_prefix};g' 
		-e 's;^(sysconfdir=).*;1 $RPM_BUILD_ROOT%{_prefix}/etc;g' 
		`find . -name Makefile -print`
	    make install

HISTORY

       The GNU shtool subst command was originally written by Ralf S.  Engelschall <rse@engelschall.com> in 2001 for GNU shtool.  It was prompted
       by the need to have a uniform and convenient patching frontend to sed(1) operations in the OpenPKG package specifications.

SEE ALSO

       shtool(1), sed(1).

18-Jul-2008							   shtool 2.0.8 					       SHTOOL-SUBST.TMP(1)
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