Temporary files and directory notes
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✎ This article/section is a stub — some half-sorted notes, not necessarily checked, not necessarily correct. Feel free to ignore, or tell me about it.
libc
http://www.gnu.org/software/libc/manual/html_node/Temporary-Files.html
shell
mktemp
Note that on success it prints out what it makes, you can do things like:
export MYTEMPDIR=`mktemp -d /tmp/my.XXXXXXXXXX`
Note that you program will still need to check whether the variable contains anything, and whether that dir is writeable.