Re: bash question

Miner, Jonathan W (CSC) (US SSA) wrote:


-----Original Message-----
From: fedora-list-bounces@xxxxxxxxxx on behalf of Dario Lesca
Sent: Wed 10/31/2007 09:12 AM
To: Fedora Project List
Cc:
Subject: bash question

In this shell script:

#!/bin/bash
i=0

printf "a a a\nb b b\nc c c\n" |
while read x
do
i=$[i+1]
echo "$x: ($i)"
done

echo $i

-------------------------------

By pipe'ing the commands together, you cause the while loop to be executed in a subshell. Change your script to be:

#!/bin/bash
i=0

while read x
do
i=$[i+1]
echo "$x: ($i)"
done << _EOF_
a a a
b b b
c c c
_EOF_

echo $i




Or:

#!/bin/bash
printf "a a a\nb b b\nc c c\n" | {
i=0
while read x
do
i=$[i+1]
echo "$x: ($i)"
done
echo $i
}



--
Sjoerd Mullender

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