For some file the access permissions are modified to 764. Which of the following
Every one can read, group can execute only and the owner can read and write
Every one can read and write, but owner alone can execute
Every one can read, group including owner can write, owner alone can execute
None
What is a system call()
A request by the users to access kernel functions
A request by kernel to the device
A request by the device to kernel
vi is the only text editor available in Unix?
True
False
vi editor works on
Append, Insert and copy modes
Insert Mode, delete mode
Add mode, delete mode, append mode
Command, Insert mode, Edit mode
To search a string at the end of the line use
/ *
/$
/&
How to convert lower case to upper case or vice versa in vi
:set upper/lower on
Use ~
:/s lower to upper
How to open a file in read only mode using vi
vi -R
vi filename readonly
vi -r
Not possible
What is SPOOL?
A mechanism to connect to printer, keyboard and monitor in Unix
A mechanism to share printer across users
A request made by the device to unix kernel
How to query the printer queue?
Use jobs command
Use print command
Use lpq command
Use lpc command
Only root user can remove the jobs from printer queue