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Full Discussion: Exec command - different output
Operating Systems Solaris Exec command - different output Post 303000615 by bakunin on Saturday 15th of July 2017 06:29:37 PM
Old 07-15-2017
Quote:
Originally Posted by s_premkumar
Its resulting the below output.
Code:
prem@host1:exec pause 2>> /tmp/prem.log
Please Press  to continue
Connection to host1 closed.
prem@host1:
prem@host2:exec pause 2>> /tmp/prem.log
Please Press  to continue
Connection to host2 closed.
prem@host2:

. When I execute the command in host1 its not waiting for input. Any idea friends?
I can't tell you why it isn't waiting on host1, but i suppose it is simply not there (or not in the path, not flagged executable, ....). I can tell you, though, why your connection to the host is closed afterwards:

Normally, when you start a process B from another process A , A sets up B as its "child process": B will be started, executed and when it ends, its return value will be presented to A for evaluation.


With the command exec this changes: A, in fact, will start B in its own environment (the one of A) and the exit immediately so that B effectively replaces A. Because you replaces your login shell with the little script you wrote (which in turn ended) your connection was simply closed the same way it would have been if you had ended the login shell otherwise (like by pressing "CTRL-D", entering "exit", etc.).

I hope this helps.
bakunin
This User Gave Thanks to bakunin For This Post:
jim mcnamara
 

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LEARN ABOUT REDHAT

amoverview

AMOVERVIEW(8)						      System Manager's Manual						     AMOVERVIEW(8)

NAME

       amoverview - display file systems processed by Amanda over time

SYNOPSIS

       amoverview [[ -config ] config ] [ [-hostwidth width] ] [ [-diskwidth width] ] [ -verbose ]

DESCRIPTION

       Amoverview displays a chart showing hosts and file systems processed by Amanda along with the backup level performed each day.

       See the amanda(8) man page for more details about Amanda.

OPTIONS

       [-config config]
	      Use configuration config instead of DailySet1.

       [-hostwidth width]
	      Set host field column width to width characters instead of eight.

       [-diskwidth width]
	      Set disk field column width to width characters instead of 20.

       -verbose
	      Amoverview can take a long while on large systems.  This option reports intermediate steps while it is working.

EXAMPLE

       This  shows  the /home file system on host2 was backed up at level 3 on the 8th, 9th and 10th of December, had a full backup on the 11th, a
       level 1 on the 12th and a level 2 on the 13th.

	      # amoverview
				       date 12 12 12 12 12 12
	      host     disk		    08 09 10 11 12 13

	      host1    /		     0	1  1  1  1  1
	      host1    /var		     0	1  1  1  1  1
	      host2    /		     1	1  1  1  1  0
	      host2    /home		     3	3  3  0  1  2
	      host2    /opt		     1	1  1  1  1  1
	      host2    /var		     1	1  0  1  1  1

SEE ALSO

       amadmin(8), amanda(8)

																     AMOVERVIEW(8)
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