In shell scripting How to indentify that the previous command was run successfully?

Yogesh

• Oct 4th, 2017

Echo $?
if answer 0 then last command was successful.
if answer is any numeric value then last command is not successful.

abdas

 Profile Answers by abdas Questions by abdas

• Jun 26th, 2011

in 2 ways it can be done:1st way$ echo $?  2nd way:$ pwd 2> error| cat error|wc -l       0$ cat h 2> error| cat error|wc -l       1pwd or cat or any command if outpt is 0 then successful else failed.

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How will you write a shell script to connect to SQL database?

Ashutosh Gupta

• Sep 10th, 2011

In vi editor
vi connect.sh
#!/bin/bash

sqlplus -s sys as sysdba

NARESH

• Jul 31st, 2011

Sqlplus -s username/password@schema name
:wq

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