bash while read how to remove \n character

papasj · #1 (**permalink**) 02-24-2008

Hi,

I've made a script to grep a file

Code:

for i in `cat filename.txt`
do
    strings ./binfile | grep "$i" 2>&1 > /dev/null
done

this works fine as long as in filename.txt i don't have any entries with spaces. But in my case i want to grep something with spaces like "lala tata"
and the above script greps for lala and then with tata.

When I use while read i have the same problem.
any ideas anyone??

thanks,
papasj

robotronic · #2 (**permalink**) 02-24-2008

You have to set IFS to a newline character before executing your loop:

Code:

IFS="
"
for ...; do ...; done

Or, for a nicer single line version:

Code:

IFS=$'\n'
for ...; do ...; done

papasj · #3 (**permalink**) 02-24-2008

thanks, it works fine after the IFS

vsigal · #4 (**permalink**) 05-25-2009

also " tr " could delete END OF THE LINE , try

echo abcd | tr -d '\n'

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