Answer / Nirpender Kumar

Sourcing a command in shell scripting means executing a shell script or function stored in another file within the current shell environment. This can be done by using 'source' or '.' (dot) command.

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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