What is Percol?
Percol is an interactive grep tool in your terminal, commonly used with | (pipe concept on UNIX).
- receives input lines from stdin or a file,
- lists up the input lines,
- waits for your input that filter/select the line(s),
- and finally outputs the selected line(s) to stdout.
Since percol just filters the input and output the result to stdout, it can be used in command-chains with | in your shell (UNIX philosophy!).
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