Difference between revisions of "How to completely erase /tmp"
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( cd /tmp && rm -rf kde-[a-zA-Z]* ksocket-[a-zA-Z]* hsperfdata_[a-zA-Z]* plugtmp* ) | ( cd /tmp && rm -rf kde-[a-zA-Z]* ksocket-[a-zA-Z]* hsperfdata_[a-zA-Z]* plugtmp* ) | ||
| − | one might need to completely erase the contents of /tmp directory for some reason. There might be several ways to do so, ie. scheduling the complete cleanup via crontab. The easiest way however is adding some simple lines to the above '''rc.S''' script: | + | one might need to completely erase the contents of /tmp directory for some reason during restart. There might be several ways to do so, ie. scheduling the complete cleanup via crontab or mounting /tmp in memory. The easiest way however is adding some simple lines to the above '''rc.S''' script: |
echo "cleaning up /tmp completely" | echo "cleaning up /tmp completely" | ||
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The first '''rm''' command deletes all non-hidden directories and files, the second removes most of the hidden ones. | The first '''rm''' command deletes all non-hidden directories and files, the second removes most of the hidden ones. | ||
| − | '''CAUTION:''' Editing system scripts should be done by advanced users who know exactly what they are doing, for example a typo in the last command (only one question mark) might lead to removal of all files in the system: ''rm -rf /tmp/.?*'' as this matches''' /tmp/../''' which is equivalent to root directory '''/'''. Two question marks prevent this and match only files inside /tmp directory. | + | '''CAUTION:''' '''Editing system scripts should be done by advanced users''' who know exactly what they are doing, for example a typo in the last command (only one question mark) might lead to removal of all files in the system: ''rm -rf /tmp/.?*'' as this matches''' /tmp/../''' which is equivalent to root directory '''/'''. Two question marks prevent this and match only files inside /tmp directory. The system scripts might change after system upgrade, too. |
We might also want to wipe /var/tmp - similarly add these lines: | We might also want to wipe /var/tmp - similarly add these lines: | ||
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rm -rf /var/tmp/.??* | rm -rf /var/tmp/.??* | ||
| − | + | [http://www.salixos.org/forum/viewtopic.php?f=30&t=1625&sid=ec0673643cbb67a9a67c5852bba902ab There is some controversy about wiping /tmp, discussion on that can be found on the forum]. | |
[[Category:User Documentation|System]] | [[Category:User Documentation|System]] | ||
Latest revision as of 12:05, 1 December 2010
Although Salix does provide /tmp cleanup during boot in /etc/rc.d/rc.S:
# Clean up some temporary files: rm -f /var/run/* /var/run/*/* /var/run/*/*/* /etc/nologin \ /etc/dhcpc/*.pid /etc/forcefsck /etc/fastboot \ /var/state/saslauthd/saslauthd.pid \ /tmp/.Xauth* 1> /dev/null 2> /dev/null ( cd /var/log/setup/tmp && rm -rf * ) ( cd /tmp && rm -rf kde-[a-zA-Z]* ksocket-[a-zA-Z]* hsperfdata_[a-zA-Z]* plugtmp* )
one might need to completely erase the contents of /tmp directory for some reason during restart. There might be several ways to do so, ie. scheduling the complete cleanup via crontab or mounting /tmp in memory. The easiest way however is adding some simple lines to the above rc.S script:
echo "cleaning up /tmp completely" rm -rf /tmp/* rm -rf /tmp/.??*
The first rm command deletes all non-hidden directories and files, the second removes most of the hidden ones. CAUTION: Editing system scripts should be done by advanced users who know exactly what they are doing, for example a typo in the last command (only one question mark) might lead to removal of all files in the system: rm -rf /tmp/.?* as this matches /tmp/../ which is equivalent to root directory /. Two question marks prevent this and match only files inside /tmp directory. The system scripts might change after system upgrade, too.
We might also want to wipe /var/tmp - similarly add these lines:
rm -rf /var/tmp/* rm -rf /var/tmp/.??*
There is some controversy about wiping /tmp, discussion on that can be found on the forum.
