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→Using checksums to check if files match
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===Using checksums to check if files match=== | ===Using checksums to check if files match=== | ||
If Globus is unavailable between the two systems being synchronized and Rsync is taking too long, then you can use [https://en.wikipedia.org/wiki/Checksum | If Globus is unavailable between the two systems being synchronized and Rsync is taking too long, then you can use a [https://en.wikipedia.org/wiki/Checksum checksum] utility on both systems to determine if the files match. In this example we use <code>sha1sum</code>. | ||
<source lang="console"> | |||
[name@server]$ find /home/username/ -type f -print0 | xargs -0 sha1sum | tee checksum-result.log | |||
</source> | |||
This command will create a new file called checksum-result.log in the current directory that will contain all of the checksums for the files in /home/username/. It will also print out all of the checksums to the screen as it goes. If you have a lot of files or very large files you may want to run this command in the background, in a [https://en.wikipedia.org/wiki/GNU_Screen screen] or [https://en.wikipedia.org/wiki/Tmux tmux] session; anything that allows it to continue if your [[SSH]] connection times out. | This command will create a new file called checksum-result.log in the current directory that will contain all of the checksums for the files in /home/username/. It will also print out all of the checksums to the screen as it goes. If you have a lot of files or very large files you may want to run this command in the background, in a [https://en.wikipedia.org/wiki/GNU_Screen screen] or [https://en.wikipedia.org/wiki/Tmux tmux] session; anything that allows it to continue if your [[SSH]] connection times out. | ||