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Full Discussion: * character evaluating too soon - Help!
Top Forums Shell Programming and Scripting * character evaluating too soon - Help! Post 92194 by grasper on Thursday 8th of December 2005 09:37:53 AM
Old 12-08-2005
Hi Helen

I think the issue with variable-expansion and noglob is only a problem when doing your 'eval'. Setting noglob to on shouldn't affect it otherwise. I think I'm roughly using your code-structure in the following:-

#!/bin/ksh

function fn_read_config {

p_search_item=$1
p_iteration=$2

grep ^"$p_search_item"_"$p_iteration" ./paramfile >/dev/null
v_search_return_code=$?


if [ $v_search_return_code -eq 0 ]
then
v_search_return=`grep ^"$p_search_item"_"$p_iteration" ./paramfile`
set -o noglob
v_search_line=`print ${v_search_return#*=}`
echo "PATTERN $v_search_line"
set +o noglob
return 0
fi
}

v_search=pattern
v_iter=002

fn_read_config "$v_search" "$v_iter"

set -o noglob
echo "PATTERN $v_search_line"
set +o noglob

And I'm still able to get the output:-

PATTERN *
PATTERN *

I suppose it could depend on how you were using the resulting variable value, but I'm guessing it could still be possible by manipluating noglob.

Cheers
 

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LEARN ABOUT DEBIAN

gid

GID(1)								   User Commands							    GID(1)

NAME

       gid - Query ID database and report results.

SYNOPSIS

       gid [OPTION]... PATTERN...

DESCRIPTION

       Query  ID database and report results.  By default, output consists of multiple lines, each line containing the matched identifier followed
       by the list of file names in which it occurs.

       -f, --file=FILE
	      file name of ID database

       -i, --ignore-case
	      match PATTERN case insensitively

       -l, --literal
	      match PATTERN as a literal string

       -r, --regexp
	      match PATTERN as a regular expression

       -w, --word
	      match PATTERN as a delimited word

       -s, --substring
	      match PATTERN as a substring

	      Note: If PATTERN contains extended regular expression metacharacters, it is interpreted as a regular expression  substring.   Other-
	      wise, PATTERN is interpreted as a literal word.

       -k, --key=STYLE
	      STYLE is one of `token', `pattern' or `none'

       -R, --result=STYLE
	      STYLE is one of `filenames', `grep', `edit' or `none'

       -S, --separator=STYLE
	      STYLE is one of `braces', `space' or `newline' and only applies to file names when `--result=filenames'

	      The above STYLE options control how query results are presented.	Defaults are --key=token --result=filenames --separator=space

       -F, --frequency=FREQ
	      find tokens that occur FREQ times, where FREQ is a range expressed as `N..M'.  If N is omitted, it defaults to 1, if M is omitted it
	      defaults to MAX_USHRT

       -a, --ambiguous=LEN
	      find tokens whose names are ambiguous for LEN chars

       -x, --hex
	      only find numbers expressed as hexadecimal

       -d, --decimal
	      only find numbers expressed as decimal

       -o, --octal
	      only find numbers expressed as octal

	      By default, searches match numbers of any radix.

       --help display this help and exit

       --version
	      output version information and exit

REPORTING BUGS

       Report bugs to bug-idutils@gnu.org

SEE ALSO

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

	      info gid

       should give you access to the complete manual.

gid - 4.5							    August 2010 							    GID(1)
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