Which of the following system call is used for inter-process communication?

Which of the following system call is used for inter-process communication?

Which one of the following is the correct syntax for grep command?

Which one of the following is the correct syntax for grep command?

Using ‘e’ command we can . . . . . . . .

Using ‘e’ command we can . . . . . . . .

cpio program can be used with redirection and piping.

cpio program can be used with redirection and piping.

file command identifies the file type by examining the magic number of the file.

file command identifies the file type by examining the magic number of the file.

. . . . . . . . function returns the first occurrence of a character in a string

. . . . . . . . function returns the first occurrence of a character in a string.

Which command will push the current foreground job to the background?

Which command will push the current foreground job to the background?

. . . . . . . . key is used for switching to command mode from input mode.

. . . . . . . . key is used for switching to command mode from input mode.

The command cd * will work.

The command cd * will work.

For interrupting a command, we can use . . . . . . . .

For interrupting a command, we can use . . . . . . . .

Which one of the following is not an environment variable?

Which one of the following is not an environment variable?

What is a daemon?

What is a daemon?