Sticky Bit: User Ownership access-right Flag in Unix

Sticky bit is a bit set in permission of a file or directory to give special access –rights to user. When we set the sticky bit for any executable file, it will remain in swap space after the process exited. It will help to reduce time of execution in repeatedly used programs. So, we can set this sticky bit for frequently used programs like editors, commands etc. So, execution of them will be faster as compared to without sticky bit. Main important use of sticky bit is on directory, when we set sticky bit for directory then files reside in...

SetUID, SetGID bit : Special Permission in Linux

Sticky bit concept and implementation                                      Check CPU usage of file system SetUID: SetUID is a set User ID upon execution. We can identify SetUID bit is set or not in permissions of file by long listing the details of file as below. [linuxconcepts@localhost test]$ cat > setuid.sh #!/bin/sh echo "SET USER ID BIT"; date [linuxconcepts@localhost test]$ [linuxconcepts@localhost test]$ ls -l setuid.sh -rw-rw-r--....