par2 man page

par2 — PAR 2.0 compatible file verification and repair tool.


par2 c|v|r [options] <par2 file> [files]

par2 c(reate) [options] <par2 file> [files]
par2 v(erify) [options] <par2 file> [files]
par2 r(epair) [options] <par2 file> [files]

par2create [options] <par2 file> [files]
par2verify [options] <par2 file> [files]
par2repair [options] <par2 file> [files]


par2cmdline is a program for creating and using PAR2 files to detect damage in data files and repair them if necessary. It can be used with any kind of file.


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-a <file>
Set the main par2 archive name; required on create, optional for verify and repair
Set the Block‐Count
Set the Block‐Size (don't use both -b and -s)
Level of redundancy (percentage)
Redundancy target size, <c>=g(iga),m(ega),k(ilo) bytes
Recovery block count (don't use both -r and -c)
First Recovery‐Block‐Number
Uniform recovery file sizes
Limit size of recovery files (don't use both -u and -l)
Number of recovery files (don't use both -n and -l)
Memory (in MB) to use
Number of threads to use (Auto-detected)
-v [-v]
Be more verbose
-q [-q]
Be more quiet (-qq gives silence)
Purge backup files and par files on successful recovery or when no recovery is needed
Recurse into subdirectories (only useful on create)
No data skipping (find badly mispositioned data blocks)
Skip leaway (distance +/- from expected block position)
Treat all remaining command line as filenames


Peter Brian Clements <peterbclements@users.sourceforge.net>
Marcel Partap <mpartap@gmx.net>
Ike Devolder <ike.devolder@gmail.com>
par2cmdline-mt: Jussi Kansanen <jussi.kansanen@gmail.com>

Referenced By

bup-damage(1), bup-fsck(1).

Explore man page connections for par2(1).

Parity archive utils 0.6.14 may 2015