Specifying keywords

The operators

Keywords are NOT case-sensitive. If you specify multiple keywords, separate them with the boolean operators and, or, or not. Examples are:

mpp and fortran: matches all documents that include both of the words mpp and fortran.
mpp or fortran: matches all documents that include either of the words mpp or fortran.
mpp not fortran: matches all documents that include the word mpp but not the word fortran.

If you specify multiple keywords without an operator, as in

mpp fortran

the and operator is assumed.

How keywords are evaluated

Keywords are evaluated from left to right, but parenthesis can be used to tailor the evaluation to your needs:

fortran and (mpp or message): matches all files that contain the word fortran and at least one of the words mpp or message.

Wildcards

Finally, you can use an asterisk wildcard to complete the end of a keyword:

log*: matches files containing words that begin with "log".

An asterisk can only be used to complete a keyword. "*log" and "l*g", for instance, are not valid keywords.

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© Pittsburgh Supercomputing Center (PSC), SuperComputing Science Consortium.
URL: http://sc-2.psc.edu/keywords.html
Revised: Monday, 02-Jul-2007 13:08:48 EDT