https://grasswiki.osgeo.org/w/index.php?action=history&feed=atom&title=Map_Names 2026-06-25T00:12:24Z Revision history for this page on the wiki MediaWiki 1.41.0 https://grasswiki.osgeo.org/w/index.php?title=Map_Names&diff=7830&oldid=prev 2008-11-11T16:46:54Z

<p>new FAQ from Glynn</p> <p><b>New page</b></p><div>''Q: What are the rules for the names I can give to a GRASS map?''<br /> <br /> '''A:'''<br /> GRASS map names cannot contain control characters (&lt;32), 8-bit characters (&gt;=128), space, DEL (127), or any of /&quot;'@,=* (slash, double quote, single quote, at, comma, equals, asterisk).<br /> <br /> If you want the map to be usable on MS-Windows, you also cannot use any of \:?&lt;&gt;| (backslash, colon, question mark, less-than, greater-than, vertical bar), as those aren't allowed in filenames on MS-Windows.<br /> <br /> If a map name contains any of #()[]+-%&gt;&lt;!&amp;|?:;~ (hash, parentheses, square brackets, plus, minus, percent, greater-than, less-than, exclamation mark, ampersand, vertical bar, question mark, colon, semicolon, tilde), it must be quoted within r.mapcalc, as must any name which is a valid integer or floating-point literal.<br /> <br /> Finally, '''vector map names''' are limited to valid SQL table names, which means that they must begin with a letter, can only contain letters, digits and underscores, and must not be an SQL keyword.<br /> <br /> [[Category: FAQ]]</div>

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