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Full Discussion: Retrieving previous command in a script
Top Forums Shell Programming and Scripting Retrieving previous command in a script Post 303002744 by RavinderSingh13 on Thursday 31st of August 2017 11:41:36 AM
Old 08-31-2017
Quote:
Originally Posted by SkySmart
The OS is any Unix system and I intend to use it across all platforms.
But if you need me to narrow it down:
Code:
OS:
RedHat
CentOS
Fedora
AIX
Raspian
Ubuntu
Shell: 
/bin/sh

Hello SkySmart,

Could you please try the following script and let me know if this helps you.
Code:
cat script.ksh
trap 'previous_command=$this_command; this_command=$BASH_COMMAND' DEBUG
ps -ef | egrep talling
StoreThisLastCommandA=$previous_command
awk '/error/ {print $3}' /tmp/test
StoreThisLastCommandB=$previous_command
##Printing the variables values here.
echo "Value of variable StoreThisLastCommandA is: " $StoreThisLastCommandA
echo "Value of variable StoreThisLastCommandB is:" $StoreThisLastCommandB

Since I don't have sh with me so I haven't tested it though I believe it should work properly, kindly do let me know on same.

Thanks,
R. Singh
These 2 Users Gave Thanks to RavinderSingh13 For This Post:
RudiC SkySmart
 

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