(diff.info.gz) Alternate Names
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Showing Alternate File Names
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If you are comparing two files that have meaningless or uninformative
names, you might want `diff' to show alternate names in the header of
the context and unified output formats. To do this, use the
`--label=LABEL' option. The first time you give this option, its
argument replaces the name and date of the first file in the header;
the second time, its argument replaces the name and date of the second
file. If you give this option more than twice, `diff' reports an
error. The `--label' option does not affect the file names in the `pr'
header when the `-l' or `--paginate' option is used (
Pagination).
Here are the first two lines of the output from `diff -C 2
--label=original --label=modified lao tzu':
*** original
--- modified
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