最後更新: 2018-05-28

介紹

Unison

file-synchronization tool

 * Unison runs on both Windows and many flavors of Unix

 * user-level program

if Unison is interrupted in the middle of transferring a large file, it will attempt to retransfer the whole thing on the next run.

License: GNU

Windows

https://www.irif.fr/~vouillon/unison/

Linux

Install

apt-get install unison

# 設定 ssh 的 login key

ssh-copy-id -i $HOME/.ssh/id_dsa.pub [email protected]

# Running Unison By ssh (Remote Shell Method)

unison /var/www ssh://192.168.0.101//var/www

# Config File

/root/.unison/default.prf

# 設定要 sync 的 path, e.g. root = /var/www and path = current translates to /var/www/current

root = /var/www
path = current

#ignore = Name *.tmp    ## ignores all files with the extension .tmp
#ignore = Name stats*   ## ignores all files/directories that begin with "stats"

# skip asking for confirmations on non-conflicting changes.
auto=true

# user interface will ask no questions at all.
# Non-conflicting changes will be propagated conflicts will be skipped.
batch=true

# Unison will request an extra confirmation if it appears that
# the entire replica has been deleted, before propagating the change
confirmbigdel=true

fastcheck=true

# sync premission
group=true
owner=true

prefer=newer

# Setting silent to true automatically sets the batch preference to true.
silent=true

# "file" mtime sync
times=true

# Creating A Cron Job

*/5 * * * * /usr/bin/unison &> /dev/null

# Remark

slow links

you may get some speed improvement by enabling ssh's compression feature('-sshargs -C')

DOC

man unison

https://www.cis.upenn.edu/~bcpierce/unison/download/releases/stable/unison-manual.html