Cat Out Of The Bag Costume

0 Another way to write text to a file using cat without <<< syntax: cat <(echo "some text") > some_file This is especially useful for mixing file names and text in cat, e.g.: cat file1.txt <(echo "some text") > some_file This is called process substitution.

cat is an identity pipe. It only streams its input to its output. If the second program in the chain can take its input from the same argument you pass to cat (or from the standard input, if you pass no argument), then cat is absolutely useless and only results in an additional process being forked and an additional pipe being created.