Inserting a line on a file 104mb

[maxcrook]

Help urgently

I need to insert the test V6 into 26 files all of size 104mb. The text V6 needs to go onto the first line of each file.

I cannot use vi as there is not enough memory to enable me to do this. Can I do it using sed ?

The files are all call CallsFrm.arc.n

Urgent assistance required if possible !

Thanks

Max

 

[mrregan]

Hi
Try:
for i in `ls CallsFrm.arc.*`
do
echo -n V6 > newfile
cat $i >> newfile
mv newfile $i
done

(backup your files 1st!)

 

[maxcrook]

Thanks that worked but I screwed up on one file i now need to get rid of the first line in a file using sed the pattern on the first line in the file is

V

 

[MikeLacey]

use grep, as long as only the one line contains just 'V'

grep -v '^V$' oldfile > newfile Mike
michael.j.lacey@ntlworld.com
Email welcome if you're in a hurry or something -- but post in tek-tips as well please, and I will post my reply here as well.

 

[maxcrook]

Cheers again Mike that did the trick it can also be done using:

sed -e 's/^V$/V6/' oldfilename > newfilename

Thanks

Max