how to get part of string variable with echo command only?

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What are the different types of variables used in shell script?

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Explain about echo command?

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Is shell and terminal the same?

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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 ?

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Determine the output of the following command: name=shubham && echo ‘my name is $name’.

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What lives in a shell?

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Create a bash shell script that reads in a number from the user. If the number is 1, print out the date. If the number is 2, list the files in the current directory. If the number is 3, print out who is currently logged onto the system. If the number is anything else, print out an error message and exit. Name this script "various.sh"

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shell script for reverse the string

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What is the syntax of "grep" command?

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Which is best institute for testing tool?

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What is the use of "shift" command in passing parameters?

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