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how to delete blanks inside a quoted string

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# 1  
Old 02-04-2009
how to delete blanks inside a quoted string
Hi
I need to update a string inside a file which looks like the following:
PX_LIST=" 4119 2390 2294 2776 2897 4099 "

Is there a way to get rid of the blanks after the first quote mark and before the last quote mark.

This needs to be done ONLY for the string named PX_LIST (there are some other qutes in the file and the blanks needs to be preserved for them)

The modifies string should look like this:
PX_LIST="4119 2390 2294 2776 2897 4099"

Any idea? Thanks for any help and/or advice.... -A
# 2  
Old 02-04-2009
Code:
echo 'PX_LIST=" 4119 2390 2294 2776 2897 4099 "' | sed -e 's/=" */="/' -e 's/ *"$/"/'

# 3  
Old 02-04-2009
gawd -- i keep misreading carp. sorry.
# 4  
Old 02-04-2009
THANKS A LOT!!! SmilieSmilie
# 5  
Old 02-04-2009
Code:
$ X='PX_LIST=" 4119 2390 2294 2776 2897 4099 "'

$ echo $X|perl -pe 's/(^.*)\"\s+(.*)\s+\"$/$1\"$2\"/'
PX_LIST="4119 2390 2294 2776 2897 4099"

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