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Subsections

• Synopsis
• Description
• Options
• Notes
• Diagnostics
• Examples
• Files
• See also
• Author

av

AIPS++ filename validation utility.

Synopsis

av filename1 [filename2,...]

Description

av validates an AIPS++ class implementation filename against those already in the system to ensure uniqueness in the first 15 characters. It consults a cache of AIPS++ pathnames maintained by other AIPS++ code management utilities (ai (p), amv (p), exhale (p)). Any matches found are printed on stdout.

Options

None.

Notes

• The pathname cache is stored in compressed form using gzip to minimize the amount of data which must be fetched from the master during a checkin or rename.

• If several filenames are to be validated it is more efficient to run av once with multiple filename arguments than to run it separately for each filename.

Diagnostics

Status return values
0: success
1: initialization error
2: cache file not accessible

Examples

The command

   av BaseMappedArrayIter

would print the string

   aips/implement/Tables/BaseMappedArrayEngine

indicating that BaseMappedArrayIter would not be acceptable as a new file name because the first 15 characters conflict with BaseMappedArrayEngine.

Files

$MSTRETCD/av_cache.gz

...pathname cache.

See also

The GNU manual page for gzip(1).
AIPS++ variable names (§1.2).
ai (p), AIPS++ code checkin utility.
amv (p), AIPS++ code rename utility.
exhale (p), AIPS++ code export utility.

Author

Original: 1994/11/11 by Mark Calabretta, ATNF.