When using the TeX Live Manager or browsing CTAN, sometimes I want to know what TeX Live collection a particular package is found in. What is a convenient way to check?
The terminal command
tlmgr show abc
package: abc category: Package shortdesc: Support ABC music notation in LaTeX. longdesc: The abc package lets you include lines of music written in the ABC Plus language. The package will then employ the \write18 facility to convert your notation to PostScript (using the established utility abcm2ps) and hence to the format needed for inclusion in your document. installed: Yes revision: 15878 cat-version: .0 cat-date: 2008-03-08 20:47:21 +0100 cat-license: lppl collection: collection-music
Pardon the advertising. :)
It will show the information also for not installed packages.