bash question
Miner, Jonathan W (CSC) (US SSA)
jonathan.w.miner at baesystems.com
Wed Oct 31 13:28:05 UTC 2007
-----Original Message-----
From: fedora-list-bounces at redhat.com 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
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