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UGU: Unix Guru Universe - Unix Tip #4534- August 10, 2025
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Unix Tip #4534- August 10, 2025
PROTECT THE ROOT DIRECTORY AT ALL COST
Here is a little extra guard that can be taken if
anyone attempts, or accidentally recursively removes
files inside a directory. If and when it occurs,
the person will constantly be prompted with the
question"are you sure?"
Here is how it works in a safe area:
% cd /usr/tmp
% mkdir foo
% touch /usr/tmp/foo/\-i
% chmod 000 /usr/tmp/foo/\-i
NOTE: Use the fully qualified path to create the
file when creating.
% cd foo
% touch fee fii foo fum
% rm -rf *
Every little bit helps!
NOTE: All tips provided are USE AT YOUR OWN RISK. Tips are submitted
by various unix admins around the globe. UGU suggest you read and
test each tip in a non-volitile environment before placing into
production.
LAST 5 TIPS
4533
- KEEP THOSE DAEMONS RUNNING
4532
- BE CAREFUL WITH NIS+
4531
- TAKE NOTES AT 3AM
4530
- HOW MANY COMMANDS HAVE I RUN?
4529
- VULNERABILITIES IN UNIX
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