Comments on: Learning Shell Scripting: A Guide from Newbies to System Administrator https://www.tecmint.com/learn-shell-scripting/ Tecmint - Linux Howtos, Tutorials, Guides, News, Tips and Tricks. Mon, 05 May 2025 05:06:45 +0000 hourly 1 By: Manikandan https://www.tecmint.com/learn-shell-scripting/comment-page-1/#comment-985207 Sun, 22 Apr 2018 05:26:00 +0000 http://www.tecmint.com/?p=4324#comment-985207 Hi Team,

I need to get the exact telnet output without any manual intervention 

-bash-4.2# echo exit | telnet localhost 22
Trying ::1...
Connected to localhost.
Escape character is '^]'.
Connection closed by foreign host.



-bash-4.2#  telnet localhost 22
Trying ::1...
Connected to localhost.
Escape character is '^]'.
SSH-2.0-OpenSSH_7.4
^]==========



Here when use telnet localhost 22 - SSH-2 OpenSSH_7.4 is showing , but in echo exit | telnet localhost 22 it's not showing 


Output : 
bash-4.2# echo exit | telnet localhost 22
Trying ::1...
Connected to localhost.
Escape character is '^]'.
Connection closed by foreign host.
telnet> quit
Connection closed.
-bash-4.2#


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		By: Jishnu S		
		https://www.tecmint.com/learn-shell-scripting/comment-page-1/#comment-971580

		
		Tue, 20 Feb 2018 08:11:33 +0000
		http://www.tecmint.com/?p=4324#comment-971580

					
			Hi,


Could you please post a shell script program to start and stop aws instances.

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		By: kundan singh		
		https://www.tecmint.com/learn-shell-scripting/comment-page-1/#comment-881445

		
		Wed, 05 Apr 2017 15:39:58 +0000
		http://www.tecmint.com/?p=4324#comment-881445

					
			@Ravi


ok, means i can not put a command into hold state in a script.

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		By: Ravi Saive		
		https://www.tecmint.com/learn-shell-scripting/comment-page-1/#comment-881350

		
		Wed, 05 Apr 2017 05:38:10 +0000
		http://www.tecmint.com/?p=4324#comment-881350

					
			In reply to kundan singh.


@Kundan,


Instead using script, try to add individual commands to the cron jobs and run them specific time. This way you can keep your Linux server performance to stable..

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		By: kundan singh		
		https://www.tecmint.com/learn-shell-scripting/comment-page-1/#comment-881316

		
		Wed, 05 Apr 2017 00:30:39 +0000
		http://www.tecmint.com/?p=4324#comment-881316

					
			Hi, I have written a script with four commands. These four commands are taking backup of my servers. But when the script is running it’s taking so much RAM So that I want to RUN these commands one by one but the script file is one. is it possible?

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