Can't get lines of a file with a Bash script..

barisdemiray · 08-11-2004, 10:25 AM

Hi! I'm working on a Bash shell script but i've stucked at one point. I have a code like below

Code:

...
for phrase in `cat $PHRASE_REPOSITORY/$phrasedir/weighted.tmp`; do
...

Don't think about variables, they're only directory names. But the problem is this: Since weighted.tmp file contains phrases like

Code:

one two
three four five

when i grab the cated values into `phrase' variable it takes the values "one", "two", "three", "four" seperately. How can i get the file data line by line? Is there any commands that match only newlines, not all printable spaces? Thanks!

Dark_Helmet · 08-11-2004, 10:45 AM

A quick way is to change your IFS variable. Try this:

Code:

#!/bin/bash

old_ifs=$IFS
IFS=$'\n'
...
for phrase in `cat $PHRASE_REPOSITORY/$phrasedir/weighted.tmp`; do
...
IFS=$old_ifs

barisdemiray · 08-11-2004, 12:42 PM

Quote:

Originally posted by Dark_Helmet
A quick way is to change your IFS variable. Try this:

Code:

#!/bin/bash old_ifs=$IFS IFS=$'\n' ... for phrase in `cat $PHRASE_REPOSITORY/$phrasedir/weighted.tmp`; do ... IFS=$old_ifs

That was really cool and works great! So much thanks Dark_Helmet! ;-)