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What else can I help you with?
What is the Purpose of exit command in Shell of Unix?
The 'exit' command allows you to stop a running shell script at any point and to return a "status" value back to whomever called the shell script. This is a very common practice with shell scripts; sometimes you want to stop the script before it gets to the end of the shell script (for various logic reasons). The 'exit' command also allows you to give a status that any other calling process can use to determine if the shell script ended successfully or not.
What is the command to execute a shell script?
If the shell script is readable and executable then to execute it just type the name of the shell script file. Otherwise, you can explicity call a shell interpreter to run the file as a shell script, i.e., ksh myfile
Can you execute a shell script if you do not have read permission for the file containing the script?
No, the shell needs both execute and read permissions to run the script.
What is the purpose of using echo command?
The echo command echoes out any of the command line arguments given to it. It is commonly used in shell scripts to echo what portions of the shell script are doing.
Write a shell script to show that user is logged in or not?
You don't need a shell script for that; use either 'whoami' or 'id'
Parse log files-shell script?
There are following shell scripts available at the below mentioned url -1. Shell Script for Log4j Log Analysis and exception reporting2. Log Monitoring Shell Script - email upon errorsHope that's what you are looking for.
What is a command in Unix?
Essentially, a command in Unix is a program that you execute for a certain purpose. It could be anything, from a shell script, to copying or deleting files, etc.
How do you compile and run shell script of factorial?
Shell scripts are not compiled; they are interpreted (and therefore do not need to be compiled). Just type in the name of the shell script and any parameters it needs to execute.
How do you write a shell script which counts the last 10 lines present in a given file?
You don't need a shell script to do this - just use the 'tail' command.
What is a .sh file?
A .sh file is a shell script.
How do you indicate a comment line in a shell script?
With the # symbol.
When might it be necessary or advisable to write a shell script instead of a shell function?
A shell function will do nothing unless it is explicitly called by other code, typically in a shell script. A shell script is a runnable, executable process, which can call other shell scripts and/or functions. The question might be worded backwards - it is necessary to write shell functions for shell scripts when certain logical functionality is required to be performed multiple times. Consider a shell function equivalent to a program subroutine - they operate the same way.
