To know the exit status of a command, we can use ____(a) $$(b) $*(c) $?(d) $-The question was posed to me in quiz.My query is from Logical Operators and Conditional Execution topic in chapter Essential Shell Programming of Unix

To know the exit status of a command, we can use ____(a) $$(b) $*(c) $

1.	To know the exit status of a command, we can use ____(a) $$(b) $*(c) $?(d) $-The question was posed to me in quiz.My query is from Logical Operators and Conditional Execution topic in chapter Essential Shell Programming of Unix
Answer» Right option is (c) $? The EXPLANATION is: The parameter $? STORES the exit status of the last command. It displays the value if the command SUCCEEDS and a non ZERO value if it fails.

Discussion

No Comment Found

Related InterviewSolutions

tar command can use the standard input to obtain its file list.(a) True(b) FalseThis question was posed to me in an online quiz.I need to ask this question from Administrator Specific Commands and Privileges topic in section Essential Shell Programming of Unix
For restoring files using tar, ____ option is used.(a) -a(b) -c(c) -v(d) -xThe question was asked in an interview for job.My doubt is from Administrator Specific Commands and Privileges topic in division Essential Shell Programming of Unix
For displaying the archive, -t option is used with the tar command.(a) True(b) FalseThis question was posed to me during an interview.Question is from Administrator Specific Commands and Privileges topic in section Essential Shell Programming of Unix
tar command uses ___ option for backing up files.(a) -a(b) -c(c) -d(d) -fThe question was asked during an interview.The question is from Administrator Specific Commands and Privileges in division Essential Shell Programming of Unix
Which of the following options are used with the cpio program?(a) -a(b) -i(c) -o(d) -i and -oI have been asked this question during an interview.The doubt is from Administrator Specific Commands and Privileges in chapter Essential Shell Programming of Unix
cpio program can be used with redirection and piping.(a) True(b) FalseThe question was asked in an interview for internship.The origin of the question is Administrator Specific Commands and Privileges topic in chapter Essential Shell Programming of Unix
For formatting diskettes, we can use the _______ command.(a) format(b) fdformat(c) frmt(d) format and fdformatI got this question during an online exam.I'm obligated to ask this question of Administrator Specific Commands and Privileges topic in chapter Essential Shell Programming of Unix
Which of the following is a backup program?(a) bckup(b) trap(c) ciop(d) cpioThe question was posed to me by my college director while I was bunking the class.The doubt is from Administrator Specific Commands and Privileges topic in division Essential Shell Programming of Unix
___ command performs copying of diskettes.(a) pp(b) df(c) du(d) ddThis question was posed to me by my college professor while I was bunking the class.Query is from Administrator Specific Commands and Privileges in chapter Essential Shell Programming of Unix
The set of routines needed to operate a specific device is known as ________(a) device file(b) device program(c) device driver(d) device softwareI have been asked this question in semester exam.My question is based upon Administrator Specific Commands and Privileges topic in division Essential Shell Programming of Unix

To know the exit status of a command, we can use ____(a) $$(b) $*(c) $?(d) $-The question was posed to me in quiz.My query is from Logical Operators and Conditional Execution topic in chapter Essential Shell Programming of Unix

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment