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This is the command g.tempfilegrass that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator



g.tempfile - Creates a temporary file and prints it’s file name.


general, support, scripts


g.tempfile --help
g.tempfile [-d] pid=integer [--help] [--verbose] [--quiet] [--ui]

Dry run - don’t create a file, just prints it’s file name

Print usage summary

Verbose module output

Quiet module output

Force launching GUI dialog

pid=integer [required]
Process id to use when naming the tempfile


g.tempfile is designed for shell scripts that need to use large temporary files. GRASS
provides a mechanism for temporary files that does not depend on /tmp. GRASS temporary
files are created in the data base with the assumption that there will be enough space
under the data base for large files. GRASS periodically removes temporary files that have
been left behind by programs that failed to remove them before terminating.

g.tempfile creates an unique file and prints the name. The user is required to provide a
process-id which will be used as part of the name of the file. Most Unix shells provide a
way to get the process id of the current shell. For /bin/sh and /bin/csh this is $$. It
is recommended that $$ be specified as the process-id for g.tempfile.


For /bin/sh scripts the following syntax should be used:
temp1=`g.tempfile pid=$$`
temp2=`g.tempfile pid=$$`
For /bin/csh scripts, the following can be used:
set temp1=`g.tempfile pid=$$`
set temp2=`g.tempfile pid=$$`


Each call to g.tempfile creates a different (i.e. unique) name. Although GRASS does
eventually get around to removing tempfiles that have been left behind, the programmer
should make every effort to remove these files. They often get large and take up disk
space. If you write /bin/sh scripts, learn to use the /bin/sh trap command. If you write
/bin/csh scripts, learn to use the /bin/csh onintr command.

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