Repeat a file or stream forever
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README.md

cycle

Repeat a file or stream forever.

... | cycle | ...

Description

cycle copies standard input to standard output, repeating forever. The input is buffered to a temporary file if it does not support seeking.

Examples

Repeat a stream:

$ echo test | cycle
test
test
...
^C

Repeat a file:

$ cycle <foo.txt

Repeat multiple files:

$ cat foo.txt bar.txt | cycle

Running

Should work with any Unix, including Linux and macOS.

Mac users can install from my Homebrew tap

brew install sjmulder/tap/cycle

To compile, install and uninstall from source:

make
make install   [DESTDIR=] [PREFIX=/usr/local] [MANPREFIX=PREFIX/man]
make uninstall [DESTDIR=] [PREFIX=/usr/local] [MANPREFIX=PREFIX/man]

Legal

Copyright (c) 2018, Sijmen J. Mulder (ik@sjmulder.nl)

cycle is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

cycle is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License along with cycle. If not, see https://www.gnu.org/licenses/.