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Try:
grep '^..AB...Y' file

If the server is at a known, fixed IP address, you can assign it two names in /etc/hosts like this. Then either name will connect you to the same server. 192.168.1.21 serverA serverB
Then make a...

Depends on how your config file is!!!

Pls post sample input (both config and folder) and expected output.

Regards
Ravi

One way could be something like this:
file="lastline.txt"

lastchar=$(od -An -t dC $file |awk 'NF{c=$NF}END{print c}')
if [ $lastchar = "10" ]
then
echo "file is OK"
else
echo >> $file
fi

Have a read of this post:

https://www.unix.com/shell-programming-scripting/57511-sed-skipping-last-line-file.html#5

This is Useless Use of Cat (http://partmaps.org/era/unix/award.html):
cat...

You're welcome. You might want to read it too.



cat $file | sed 's/SCORE=.*$/SCORE=\r/g' > newfile

cat $file | sed 's/SCORE=.*$/SCORE=/' > newfile That's also a useless use of cat...

should be good enough with
sed 's/SCORE=.*/SCORE=/'

$ means "must match until the end of the line". .* means "match zero or more of any character". a* would mean "match 1 or more a's".

So 's/SCORE=.*$/SCORE=\r/g means match SCORE (at any point in...