What is the use of "shift" command in passing parameters?
Answer / satchi
"shift" is useful when you need to access positional
parameters more than 9.
EX- execute a script to display 11th position parameter.
#./test.sh 1st 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th
12th
shell scripts limits the access of arguments up to 9.to
over come this calculate the position of argument you want
to access and use shift to pull inside 9th countdown.
ex:
withen the script write "shift 2" before "echo $9"to
display 11th parameter.
withen the script write "shift 3" before "echo $9"to
display 12th parameter.
Is This Answer Correct ? | 8 Yes | 1 No |
What does $@ mean bash?
how do you write sql queries using shell script for eg:- we have databae table like EMPNO,ENAME,SAL,DEPTNO columns in EMP table how you display EMPNO,SAL FIELDS from emp in SHELL SCRIPT please explain with an example
What is a shell environment?
How do I run a powershell script?
I want to monitor a continuously updating log file, what command can be used to most efficiently achieve this?
Print a given number, in reverse order using a shell script such that the input is provided using command line argument only.
What are the different types of shell scripting?
Explain how you Automate your application using Shell scripting.
What are the different shells available?
What are the advantages of bash over all other shells?
How would you compare the strings in a shell script?
What is the use of "test" command?