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simsun
1999 Feb 10
1
When a shell says no (clobber) it means maybe.
As will be seen from these code fragments (and experiment) a noclobber
option in bash or pdksh (or ksh on AIX) will do limited clobbers.
1) They will clobber named pipes.
(mknod /tmp/predicted p
cat /tmp/predicted > $stolen
cat $switched > /tmp/predicted ) &
2) They will clobber symlinks.
ln -s /some/new/target /tmp/predicted
3) They can be raced.