topic Re: read cmd truncating leading spaces in Operating System - HP-UX

read cmd truncating leading spaces

Jim Green_1 — Mon, 24 Mar 2003 20:22:34 GMT

I'm trying to use the read command such as:
while read LINE
do
process stuff...
done < input.file

input.file looks something like:
line1 starting pos 3
line2 starting pos 3
line3 starting pos 3
etc...

When I examine the var "$LINE"
it looks like:
line1 starting pos 3
line2 starting pos 3
line3 starting pos 3

How can I get the read command to leave the leading spaces intact???
Also, the UNIX 'line' command was not a viable alternative.
Thanks,
jg

Re: read cmd truncating leading spaces

James R. Ferguson — Mon, 24 Mar 2003 20:32:43 GMT

Hi Jim:

You can reset the IFS (Inter-Field Seperator) to achieve this. For instance:

# OLDIFS=$IFS
# IFS=:
# while read LINE
> do
> echo "${X}"
> done < input.file
# IFS=$OLDIFS

Regards!

...JRF...

Re: read cmd truncating leading spaces

Michael Steele_2 — Mon, 24 Mar 2003 21:00:45 GMT

Also try:
perl -pe 1 file

For one line at a time in Perl.