Question
a.
$!
b.
$$
c.
$0
d.
$*
Posted under Operating System
Engage with the Community - Add Your Comment
Confused About the Answer? Ask for Details Here.
Know the Explanation? Add it Here.
Q. Which of the following special shell variables is used to process number of the current shell?
Similar Questions
Discover Related MCQs
Q. Which option is used with cmp command to give a detailed list of the byte number and the differing bytes in octal for each character that differs in both the files?
View solution
Q. Which command is used with vi editor scroll half page backward?
View solution
Q. Which command is used with vi editor to move cursor forward to first occurrence of character 'ch' in the current line?
View solution
Q. Which of the following keys is used to delete the character beneath the cursor?
View solution
Q. Which command is used to assign only read permission to all three categories of the file 'note'?
View solution
Q. Which command will be used with vi editor to append text at end of line?
View solution
Q. The first set of the three permissions (rw) pertains to the owner of the file, indicating that the owner has
View solution
Q. Which of the following commands is used to save the output of the who command in a file named user.lst, as well as display it?
View solution
Q. Which of the following shell's wildcards are used to match any number of characters including none?
View solution
Q. The command used to remove the directory is;
View solution
Q. Which symbol will be used with grep command to match the pattern pat at the end of a line?
View solution
Q. Which command is used to display all the lines with the string 'sales' from the file empl.lst?
View solution
Q. Which of the following commands is not the vi Input mode command?
View solution
Q. Which of the following commands is used to remove files?
View solution
Q. Which command is used with vi editor to save file and remain in the editing mode?
View solution
Q. You can append to a file instead of overwriting by using the
View solution
Q. The [line number G] key allows you
View solution
Q. Which of the following commands is used to have a two-way communication with any person who is currently logged in?
View solution
Q. Which command is used with vi editor to move the cursor to the left?
View solution
Q. Which of command is used to copy a file?
View solution
Suggested Topics
Are you eager to expand your knowledge beyond Operating System? We've curated a selection of related categories that you might find intriguing.
Click on the categories below to discover a wealth of MCQs and enrich your understanding of Computer Science. Happy exploring!