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| author | Tom Ryder <tom@sanctum.geek.nz> | 2017-04-05 20:06:39 +1200 |
|---|---|---|
| committer | Tom Ryder <tom@sanctum.geek.nz> | 2017-04-05 20:46:47 +1200 |
| commit | c8ab406749124d2e762ad5cf53963070113afd0f (patch) | |
| tree | 54c9721a06957ebe7098a211eea803b0230c0f5d /bin/mktd.sh | |
| parent | Handle POSIX correctness in ~/.bash_profile (diff) | |
| download | dotfiles-c8ab406749124d2e762ad5cf53963070113afd0f.tar.gz dotfiles-c8ab406749124d2e762ad5cf53963070113afd0f.zip | |
Apply runtime shebanging to POSIX shell
Diffstat (limited to 'bin/mktd.sh')
| -rw-r--r-- | bin/mktd.sh | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/bin/mktd.sh b/bin/mktd.sh new file mode 100644 index 00000000..62b10396 --- /dev/null +++ b/bin/mktd.sh @@ -0,0 +1,11 @@ +# Try to make a random temp directory + +# Get a random seed from rnds(1df); if it's empty, that's still workable +seed=$(rnds) + +# Build the intended directory name, with the last element a random integer +# from 1..2^31 +dn=${TMPDIR:-/tmp}/${1:-mktd}.$$.$(rndi 1 2147483648 "$seed") + +# Create the directory and print its name if successful +mkdir -m 700 -- "$dn" && printf '%s\n' "$dn" |