Shuf
Table of Contents
shuf
Generate random permutations.
Randomize the order of lines in a file and output the result:
shuf filename seq 10 | shuf
Only output the first 5 entries of the result:
shuf -n 5 filename seq 10 | shuf -n 5
Write the output to another file:
NOTE: the output file is the one immediately after the -o flag!
shuf test.txt -o test2.txt
Generate 3 random numbers in the range 1-10 (inclusive):
NOTE: The “repeat” flag means output lines can appear more than once.
shuf -n 3 -i 1-10 --repeat
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