Force flushing of output to a file while bash script is still running
I found a solution to this here. Using the OP's example you basically run
stdbuf -oL /homedir/MyScript &> some_log.logand then the buffer gets flushed after each line of output. I often combine this with nohup to run long jobs on a remote machine.
stdbuf -oL nohup /homedir/MyScript &> some_log.logThis way your process doesn't get cancelled when you log out.
script -c <PROGRAM> -f OUTPUT.txtKey is -f. Quote from man script:
-f, --flush Flush output after each write. This is nice for telecooperation: one person does 'mkfifo foo; script -f foo', and another can supervise real-time what is being done using 'cat foo'.Run in background:
nohup script -c <PROGRAM> -f OUTPUT.txt
bash itself will never actually write any output to your log file. Instead, the commands it invokes as part of the script will each individually write output and flush whenever they feel like it. So your question is really how to force the commands within the bash script to flush, and that depends on what they are.