3 ms·

Instead of using a cat with heredoc, just type cat - | grep "something" And control-d when finished entering text

• gnosis 15y ago
  You don't need the dash. This is enough: cat | grep "something"
  • comex 15y ago
    Or just grep "something"
  • veyron 15y ago
    In some older versions of bash, when dealing with process substitution, you actually needed the dash. For example get_data | tee >(cmd) get_data | tee >(cat | cmd) would fail but get_data | tee >(cat - | cmd) would succeed.
  • 16s 15y ago
    When I was young, I used cat and grep like that until an old Unix sys-admin remarked "What a gratuitous use of cat!". At the time, I did not understand what he meant, but now I do. So whenever I see cat and grep used like this, I think back to that lesson I learned.