On 5 Oct, Andrew Bennetts wrote:
> On Fri, Oct 05, 2001 at 04:02:16PM -1000, cpaul wrote:
> >
> > hi - i have two plaintext files
> >
> > i want to merge them, discarding duplicate lines
> >
> > is there an easy way ?
You really need to say what you mean by merging the two files.
If you want to read one line at a time from each, and then remove
duplicate lines, you'd need something like
----- blend script: cut here ----
#!/bin/sh
MYNAME=`basename $0`
if [ $# != 2 ]
then
echo "usage: $MYNAME file1 file2" >&2
exit 1
fi
exec 3< $1
exec 4< $2
more=true
while $more
do
more=false
read line 0<&3 && echo "$line" && more=true
read line 0<&4 && echo "$line" && more=true
done
----------------- cut here --------
Then you'd:
blend file-a file-b | uniq
luke
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