31 lines
722 B
Python
31 lines
722 B
Python
import click
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@click.command()
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@click.argument('input', type=click.File('rb'), nargs=-1)
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@click.argument('output', type=click.File('wb'))
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def cli(input, output):
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"""This script works similar to the Unix `cat` command but it writes
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into a specific file (which could be the standard output as denoted by
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the ``-`` sign).
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\b
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Copy stdin to stdout:
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inout - -
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\b
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Copy foo.txt and bar.txt to stdout:
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inout foo.txt bar.txt -
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\b
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Write stdin into the file foo.txt
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inout - foo.txt
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"""
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for f in input:
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while True:
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chunk = f.read(1024)
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if not chunk:
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break
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output.write(chunk)
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output.flush()
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