On Aug 18, 2011, at 9:22 PM, Michael Gersten wrote: > I'm trying to match a multiline pattern in a program's output.
This is not OS X specific and I just found it by "binging" but it may send you on the right path http://superuser.com/questions/165634/grep-multiline-pattern > > I've got a shell script that runs from cron. It has some output. Normally > it's pointless, and clutters my mailbox. > > I've determined that if the program runs properly, the output will match the > following: > > /dev/disk.*FDisk_partition_scheme > /dev/disk.*/Volumes/XcomQemu > sending incremental file list > > sent.* > total size is.* > "disk." unmounted. > "disk." ejected. > > Note the following: > 1. It's multiple lines. > 2. It has "." and ".*" (only). > > I've looked at expect, and grep(1), re_format(7), and regex(3). Expect > doesn't seem to like multiple lines of matching. Nothing in the grep family > indicates anything about searching for a newline in the middle of a pattern > -- at best, the "patterns in a file" give one pattern per line. > > So what's the best way to test the output of one command against an expected > behavior? If something goes wrong, I want to see it; if nothing goes wrong, I > don't want to see anything. > > (If you're curious, it's mounting a virtual hard drive, rsync'ing the data of > interest into an HFS+ directory, and then unmounting it. I don't want time > machine copying a large virtual hard drive when the files of interest are > tiny.) > > > Michael > --- > PGP/GPG accepted; key 25D85CE0 > > Political and economic blog of a strict constitutionalist > http://StrictConstitution.BlogSpot.com > > _______________________________________________ > MacOSX-talk mailing list > [email protected] > http://www.omnigroup.com/mailman/listinfo/macosx-talk _______________________________________________ MacOSX-talk mailing list [email protected] http://www.omnigroup.com/mailman/listinfo/macosx-talk
