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Tagged with optimization io-redirection
2
questions
2
votes
1
answer
605
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How to pipe output of command to two separate commands and store outputs
I have a really long command that runs over a huge file and I am forced to run it twice which doubles the time it takes to run.
This is what I am doing at the moment:
x=$(command | sort -u)
y=$(...
- 25
7
votes
3
answers
1k
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Do file descriptors optimise writing to files?
Is it equivalent to have commands print to a file directly, as opposed to writing to a file descriptor?
Illustration
Writing to file directly:
for i in {1..1000}; do >>x echo "$i"; done
...
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