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help needed with a script

2 New Member
Hi All.
I have a simple script that calculates line count in a file and sends an email with the file as an attachment.
The issue I have is ,I want to subtract 1 from the line count .

Noflines=`wc -l $1 |cut -c1-8`
ans=(($Noflines-1)
echo $ans

the script is not executing at line 2..ans=
I think this is because iam subtracting integer from a string.is that true.what can i change here to make this work.
can someone please help me out.
Thanks ,Ron
Mar 7 '08 #1
2 1387
ashitpro
542 Recognized Expert Contributor
Hi All.
I have a simple script that calculates line count in a file and sends an email with the file as an attachment.
The issue I have is ,I want to subtract 1 from the line count .

Noflines=`wc -l $1 |cut -c1-8`
ans=(($Noflines-1)
echo $ans

the script is not executing at line 2..ans=
I think this is because iam subtracting integer from a string.is that true.what can i change here to make this work.
can someone please help me out.
Thanks ,Ron
use 'expr' command to achieve this:

ans=`expr $Noflines - 1`

NOTE:expression surrounded character is not single quote.
Mar 8 '08 #2
ronk
2 New Member
Thanks ashitpro .
It solved my problem.thanks again.
Mar 11 '08 #3

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