What is the first line in every perl script called?
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I have to write Shells (Linux + Unix)for publishing packages and reports. Is it possible ? What are the differents executable programs ineed to call ?
What is the meaning of $1 in shell script?
There is a record with fields namely name,roll no.,salary,grade etc.Now,write a script to create a file with multiple records have same combination of fields but with unique roll numbers.The script should work for different names in the input file.
What is echo in shell?
What are the different communication commands available in the shell?
Determine the output of the following command: [ -z “” ] && echo 0 || echo 1
What is shift command in shell script?
How do you print the output the same string which is typed in command line. how do you write the shell script or command for this. if i entered "Hello" in command line, it should print 'Hello', if i say "Hello Welcome", i should get the "Hello Welcome" as output.?
How would you compare the strings in a shell script?
What does echo $0 do?
Why should we use shell scripts?
How would you replace the n character in a file with some xyz?