3 ms·

Instead of: $ fortune > my_fortune.txt $ say -f my_fortune.txt One could use the underrated (bashism) process substitution: $ say -f <(fortune)

by lloeki 10y ago

Instead of: $ fortune > my_fortune.txt $ say -f my_fortune.txt One could use the underrated (bashism) process substitution: $ say -f <(fortune) Which works wonders for e.g diff'ing live: $ diff <(ssh elvis ls -1 foo) <(ls -1 bar)

masklinn 10y ago
Why would you even bother with that when `say` can take a string or read from stdin? Just use $ say $(fortune) or $ fortune | say -f- For bonus coolness, add "-i" (it prints the lines and highlights the current word during reading).
- mfukar 10y ago
  Because it's fun spawning a new process and watching the otherwise idle cores of your box reach 0.1% usage for a millisecond.
  - nerdponx 10y ago
    Don't all three of those commands spawn new processes?
    - mfukar 10y ago
      Not _shell_ processes, no.
- rbonvall 10y ago
  Not all commands accept input as arguments, so it's still a good trick to know.