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bash internal / file and stream operations / stream redirection and piping / process substitution (2)

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1

bash

This demonstrates using process substitution with diff to compare the contents of two directories directly.


diff <(ls dir1) <(ls dir2)

bash internal file and stream operations stream redirection and piping process substitution

2

bash

This demonstrates the use of process substitution to obtain a file descriptor for a command's output.


echo <(echo "#helloworld")

bash internal file and stream operations stream redirection and piping process substitution