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How do you end a while loop in Bash?
You can also use the true built-in or any other statement that always returns true. The while loop above will run indefinitely. You can terminate the loop by pressing CTRL+C .
Can Bash functions have arguments?
Instead, Bash functions work like shell commands and expect arguments to be passed to them in the same way one might pass an option to a shell command (e.g. ls -l ). In effect, function arguments in Bash are treated as positional parameters ( $1, $2.. $9, ${10}, ${11} , and so on).
How can I run multiple programs in parallel from a bash script?
How can I run multiple programs in parallel from a bash script? You have various options to run programs or commands in parallel on a Linux or Unix-like systems: => Use GNU/parallel or xargs command. => Use wait built-in command with &.
How to parallelize a Bash function in Linux?
Make a bash function running a single run and run that function in parallel: To learn more watch the intro videos: https://www.youtube.com/playlist?list=PL284C9FF2488BC6D1 and spend an hour walking through the tutorial http://www.gnu.org/software/parallel/parallel_tutorial.html Your command line will love you for it.
How to parallelize for-loop in Bash limiting number of threads?
If running on a shell without wait -n, one can (very inefficiently) replace it with a command such as sleep 0.2, to poll every 1/5th of a second. Since you’re actually reading input from a file, another approach is to start N subprocesses, each of processes only lines where (linenum % N == threadnum):
How long does it take to parallelize a for loop?
I have been trying to parallelize the following script, specifically each of the three FOR loop instances, using GNU Parallel but haven’t been able to. The 4 commands contained within the FOR loop run in series, each loop taking around 10 minutes. Why don’t you just fork (aka. background) them?