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Command line arguments are mainly used when some commands/programs need to be called from some other program. For example in a script, we may need a file copy operation, instead of writing our own code, better to use the commands supplied by the operating system. (For example {{{xcopy}}} in windows). to pass arguments to such commands, we use command line arguments. For {{{xcopy}} command we need to supply source files and destination directory as command line parameters - Ravi March 01, 2013 | Flag Reply

some of are i.e.
ftp
tftp
cp
telnet
rsh

& many more where command line argument required.

- kkmaurya March 02, 2013 | Flag Reply

When we need to start a service in the background and service is looking for any argument like properties file or flag then better to use command line argument rather then using code. OR script is script with arguments.

- Narendra March 05, 2013 | Flag Reply

Command line arguments are used for providing run time options to your programme.
For example: ls -l
Here "ls" is a utility which gives current folder contents and "-l" is command line option to print long listing
so "-l" is a command line argument

- RaviKant March 15, 2013 | Flag Reply

Command line programs are required where we do not want user interaction. This type situation happens when a program is launched from another program. Similarly, when user wants to run certain program periodically (like cron job). Mostly used to automate certain process without having user to interact everytime in order to execute program.

- unknown August 24, 2013 | Flag Reply

Command line argument is required when you need a parameter value from user but you do not want the user to explicitly define it. Hence, we use cmd line argument when we want the value from outside rather than hard coding it inside the code.

- Khanak Nangia October 05, 2015 | Flag Reply

Command line arguments are used when we want some parameter's value from outside rather than hard coding it inside the code. Basically, when do not want the value to be explicitly defined by the user but the value should be flexible and not hard coded.

- Khanak Nangia October 05, 2015 | Flag Reply