On Thu, Nov 5, 2009 at 1:00 PM, <[email protected]> wrote: > 1. md5sum and diff? (Brad Bendily) > 2. Re: md5sum and diff? (William Anderson) > ------------------------------ > > Message: 2 > Date: Thu, 5 Nov 2009 10:23:16 -0600 > From: William Anderson <[email protected]> > > You should be able to just copy the md5sum from a website into a text > file and just let md5sum do a check: > > $ md5sum testfile > 68b329da9893e34099c7d8ad5cb9c940 testfile > $ md5sum testfile > testfile.md5 > $ md5sum -c testfile.md5 > testfile: OK > > The format for the check file is the md5sum, two spaces, and the file > name. You can also specify multiple files, one per line, and check > several files at once (e.g. if your installing a piece of software and > serveral dependencies, you can just download all the tar balls, copy the > md5sum for each into a single file and let md5sum check them all). > > > Nifty. Didn't know about the "-c" flag. I think you missed a file arg in there though? md5sum -c testfile testfile.md5 testfile: OK
I'm trying to figure out something even lazier. $ md5sum pcmciafloppy.img | sed 's/*/ /' > local.md5; curl ftp://ibiblio.org/pub/Linux/distributions/damnsmall/current/pcmciafloppy.img.md5.txt> remote.md5; diff local.md5 remote.md5 $ How could I use i/o redirection to make it simpler? The diff man page says it can read from the input line, but I'm not sure how to make that work. John
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