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Old 02-23-2004, 11:18 AM   #1
lnchatterbox
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Registered: Feb 2004
Posts: 2

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delete line specified by variable wihin shel script with sed


Hi!

I am trying to delete a line from a file using sed.

This works:
sed '4d' inputfile
#deletes 4th line from inputfile

BUT: I have the line stored in a shell variable $line

This doesn't work:
sed '$(line)d' inputfile

Any ideas? I've already tried most combinations of brackets and ",' etc.
Thanx in advance!
 
Old 02-23-2004, 12:00 PM   #2
homey
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Registered: Oct 2003
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This seems to work ok.....
The variable is in double quotes "$line" and the command is in single quotes 'd'

Code:
#!/bin/bash

line="1,4"

cat file1.txt | sed -e "$line"'d' > file2.txt
 
Old 02-23-2004, 01:24 PM   #3
lnchatterbox
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Registered: Feb 2004
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Thanx alot! It works now!

Last edited by lnchatterbox; 02-23-2004 at 01:47 PM.
 
  


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