How to Compress and Extract Files Using the tar Command on Linux
The tar command on Linux is often used to create .tar.gz or .tgz archive files, also called “tarballs.” This command has a large number of options, but you just need to remember a few letters to quickly create archives with tar. The tar command can extract the resulting archives, too.
Canonical Kernel Livepatch Service now available for Ubuntu 14.04 LTS! | Ubuntu Insights
We are pleased to announce that we have extended our Canonical Kernel Livepatch Service to users running Ubuntu 14.04 LTS! The Canonical Kernel Livepatch Service enables runtime correction of critical security vulnerabilities in the kernel without the need to reboot. It is the best way to ensure that machines are safe at the kernel level, […]
How to see lock on table and query? | Oracle Community
select (select username || ' - ' || osuser from v$session where sid=a.sid) blocker, a.sid || ', ' || (select serial# from v$session where sid=a.sid) sid_serial, ' is blocking ', (select username || ' - ' || osuser from v$session where sid=b.sid) blockee, b.sid || ', ' || (select serial# from v$session where sid=b.sid) sid_serial from v$lock a, v$lock b where a.block = 1 and a.id1 = b.id1 and a.id2 = b.id2;