parallel-find.pl should be in svn, and have some tweaks

[price]

In parallel-find.pl, we should

• replace find -fprint with find -print, so it runs on my laptop
• for each file found, use fs la to check that scripts-security-upd still has write bits; if not, we can ignore the directory
• for each file found, tail -1 to find the version and spit that out with the filename.

Also, it should be in svn, so these changes can have a history.

[price]

Done in r724, r729, and r730.

This means

$ /mit/scripts/sec-tools/store $ rm -rf versions $ parallel-find.pl $ # wait 20 minutes for parallel-find to finish $ cat versions/* >scripts-versions

produces a scripts-versions from which a simple grep will turn up the installs of any particular application and version, which is a substantial new convenience.

I'll make a new ticket for the remaining shortcomings of this process.