SiD3WiNDR Gears  Hacker Emblem  
kill dash nine
Date: January 23rd, 2007 by SiD3WiNDR
Categories: Rants, Uncategorized

*rant* 

Most of the time when I see someone asking how to kill a process on *nix I see someone responding "kill -9 <pid>".

Alas, this is NOT the way you kill a process … the process gets killed alright, and a little too hard. So for everyone not understanding, here’s a small explanation. Everyone who knows, just skip to the next post 😛

Normally when you (or something) kill a process, it gets a SIGTERM. When a program receives SIGTERM, it knows it should shut down and saves all its open files (or prompts the user), closes its file handles, etc etc. When you use -9, you send a SIGKILL which causes the OS to clean up the process without further ado (e.g. when it doesn’t respond to SIGTERM anymore), and shut it down. This also kills the process indeed, but doesn’t always have the intended effect when looking at data loss… Remember it 😉

*end of rant* 


Incoming Links (via Technorati):
Nothing Reported

Comments are closed.

Weblog Calendar
November 2019
M T W T F S S
« Aug    
 123
45678910
11121314151617
18192021222324
252627282930  
Sales
Pages
Archives
Categories
Links
Meta
© 2002-2019, SiD3WiNDR - Proudly powered by WordPress - XHTML Compliant - RSS (Entries) - RSS (Comments)