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

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determine the output of the following command: echo ${new:-variable}

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write a scwipt that a) takes exactly one argument, a directory name. b) if the number of argument is more or less than one,print a usage message c) if the argument is not adirectory, print another message d) for the given directory, print the five biggest files and the five files that were most recently modified. e) save the output to a file called q2output.

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What are environment variables?

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what are command line arguments? what is the need of those?

1 Answers   Flipkart,

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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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write a shell script to emulate the Id command of PRIMOS which lists files and directories. It list files first with a header FILES and then directories with a header DIRECTORIES. This command has several options. The main ones are. -file select files only -dir select directories only -reverse sort in reverse order -no_header put no header on the output -brief output the header only -size display the size of each file -help display Id´s syntax and options.

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How do you create a shortcut in linux?

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What is the command to find out users on the system?

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Is shell scripting a programming language?

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Write down the syntax of "for " loop

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

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