List certain raster maps with one variable character/number:
g.mlist type=rast pattern="N45E00?.meters"
Print out "tmp" if "tmp" raster map exists:
g.mlist -r pattern='^tmp$'
Print out "tmp0" ..."tmp9" if corresponding vector map exists (each map name linewise):
g.mlist -r type=vect pattern='^tmp[0-9]$'
Print out "tmp0" ..."tmp9" if corresponding vector map exists (each map name comma separated):
g.mlist -r type=vect sep=, pattern='^tmp[0-9]$'
This may be useful for other programs' parameter input (e.g. r.series).
Regular expression (from Wikipedia, the free encyclopedia)
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