Replace a line in a file

Hi All,

I have a quick question wrt to a specific scenario in UNIX where I am trying to loop through lines of a file and trying to replace the line with another

File :

abcd.sh:501:/export/home/test/scripts_test:N
load.sh:501:/export/home/test/scripts_test,UK:N
unload.sh:501:/export/home/test/scripts_test,UK,501:N
defs.sh:501:/export/home/test/scripts_test,UK,501:N
hjkl.sh:501:/export/home/test/scripts_test,UK,501:N
uio.sh:501:/export/home/test/scripts_test,UK,501:N
inmu.sh:501:/export/home/test/scripts_test,UK,501:N

Requirement:
Read each line of the file and based on the status of the script execution in field 1 of the above file update the last field in the file to F or S (failed or success) instead of "N"

The code should replace the current line in the file and not append to the file

I tried the sed -i option and it does not work and errors out.I tried an awk and it dint work as well

The Shell is a KSH

Code snippet I am using:

while read line
do
./$script_name $params
# echo $?
if [ $? -ne 0 ]
then
echo "Inside Updating status F"
awk NR==$line '{sub( "N" ,"F" ); print }' file.txt
done < file.txt


Looking forward to suggestions

Thanks

Hi,

I finally got this working using the

sed -i "s/$line/$line1/g" file

Thanks