A local variable can be used by child processes of a shell.
True
False
What is the first process that comes into existence whenever system is booted?
init
shell
kernel
login
What is the process id and group id of the init process?
1,0
0,1
1,1
0,2
Which of these is not a valid mode in the VI editor in unix?
command
ex
edit
insert
Which is not a filter in unix?
pg
ksh
awk
grep
What is the command for listing all the background jobs?
ps
jobs
processes
kill
What is the command for killing the suspended job number three?
kill $3
kill <<3
kill %3
terminate #3
Which of the following does one need to log in to Unix?
username
password
host name
all of the above
Which command always puts you in your home directory?
home
cd
cd . .
pwd
What will the following command do? % chmod og+r *.jpg
Change the permissions on all the .jpg file so that it is readable.
It is not a valid command because the file name contains a *.
Change the permissions on all image files
Change permissions on the directory so that image files can be saved in it.