Bare with me as I am new to the
flock tool and I haven't used file descriptors as far as I know.
I have a bash script that makes a cURL request and writes the output to a file called
resp.txt. I need to create an exclusive lock so that I can write to that file and not worry about multiple users running the script and editing the text file at the same time.
Here is the code that I expect to lock the file, perform the request, and write to the text file:
( flock -e 200 curl 'someurl' -H 'someHeader' > resp.txt ) 200>/home/user/ITS/resp.txt
Is this the correct way to go about this? My actual script is a bit longer than this, but it seems to break when I add the
flock syntax to the bash script.
If someone could explain how these file descriptors work and let me know if I am locking the file correctly that would be awesome!