Piping output to grep I've got this line in my bash script: ./tg/tg -c $THIS_DIR/tg/config 2>&1 | grep ".\+" But it doesn't work. `tg` is running and producing output continuously (means doesn't terminate) and I just want to filter some of the results, but even when I use general `".\+"` pattern it doesn't work. I'm also sure when removing `| grep ".\+"` I get the output. How may I make it work?

In case of " _greping_ " though a continuant input - use `--line-buffered` option:


./tg/tg -c $THIS_DIR/tg/config 2>&1 | grep --line-buffered ".\+"


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> **`--line-buffered`**
> Use line buffering on output. This can cause a performance penalty.