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.TH "hardlink" "1"
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.SH "NAME"
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hardlink \- Consolidate duplicate files via hardlinks
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.SH "SYNOPSIS"
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.PP
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\fBhardlink\fP [\fB-c\fP] [\fB-n\fP] [\fB-v\fP] [\fB-vv\fP] [\fB-h\fP] directory1 [ directory2 ... ]
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.SH "DESCRIPTION"
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.PP
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This manual page documents \fBhardlink\fP, a
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program which consolidates duplicate files in one or more directories
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using hardlinks.
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.PP
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\fBhardlink\fP traverses one
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or more directories searching for duplicate files. When it finds duplicate
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files, it uses one of them as the master. It then removes all other
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duplicates and places a hardlink for each one pointing to the master file.
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This allows for conservation of disk space where multiple directories
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on a single filesystem contain many duplicate files.
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.PP
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Since hard links can only span a single filesystem, \fBhardlink\fP
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is only useful when all directories specified are on the same filesystem.
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.SH "OPTIONS"
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.PP
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.IP "\fB-c\fP" 10
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Compare only the contents of the files being considered for consolidation.
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Disregards permission, ownership and other differences.
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.IP "\fB-f\fP" 10
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Force hardlinking across file systems.
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.IP "\fB-n\fP" 10
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Do not perform the consolidation; only print what would be changed.
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.IP "\fB-v\fP" 10
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Print summary after hardlinking.
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.IP "\fB-vv\fP" 10
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Print every hardlinked file and bytes saved. Also print summary after hardlinking.
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.IP "\fB-h\fP" 10
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Show help.
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.SH "AUTHOR"
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.PP
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\fBhardlink\fP was written by Jakub Jelinek <jakub@redhat.com>.
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.PP
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Man page written by Brian Long.
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.PP
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Man page updated by Jindrich Novy <jnovy@redhat.com>
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.SH "BUGS"
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.PP
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\fBhardlink\fP assumes that its target directory trees do not change from under
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it. If a directory tree does change, this may result in \fBhardlink\fP
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accessing files and/or directories outside of the intended directory tree.
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Thus, you must avoid running \fBhardlink\fP on potentially changing directory
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trees, and especially on directory trees under control of another user.
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