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Full Discussion: passing the output of cmd from "eval" to a variable
Top Forums Shell Programming and Scripting passing the output of cmd from "eval" to a variable Post 302334444 by dfezz1 on Wednesday 15th of July 2009 02:23:34 PM
Old 07-15-2009
passing the output of cmd from "eval" to a variable
Hello,

I need help with the eval command.

I have been building a lengthy cmd using eval, and I need to create $var from the output of the cmd. Here is what I have.

Code:
 
Out=/dfezz1/output.txt
Node="'LPAR Info:'"
Gr3p0=" |grep"
Printc=" prtconf"
Output1=" 1>>$Out 0>&1"
Cat1="cat /dfezz1/tmp.txt"
 
eval "$Cat1 $Gr3p0 $Node $Output1"
cmd = cat /defezz1/tmp.txt |grep LPAR Info: 1>>$Out 0>&1

I have tried ...
With and without double quotes "" and __
Code:
 
eval "VAR=$Cat1 $Gr3p0 $Node $Output1"

I am running several eval grep-ing for various info and what I want to do is format the outputs and comma separate or use pipes and import it into excel.

so sometime like this after I get the eval --> $VAR

cat $VAR1 || $VAR2 || $VAR3 || >> results.txt .... then pull it into a .xls

Thanks
-Dfezz1
 

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LEARN ABOUT CENTOS

trace-cmd-stack

TRACE-CMD-STACK(1)														TRACE-CMD-STACK(1)

NAME

       trace-cmd-stack - read, enable or disable Ftrace Linux kernel stack tracing.

SYNOPSIS

       trace-cmd stack

DESCRIPTION

       The trace-cmd(1) stack enables the Ftrace stack tracer within the kernel. The stack tracer enables the function tracer and at each function
       call within the kernel, the stack is checked. When a new maximum usage stack is discovered, it is recorded.

       When no option is used, the current stack is displayed.

       To enable the stack tracer, use the option --start, and to disable the stack tracer, use the option --stop. The output will be the maximum
       stack found since the start was enabled.

       Use --reset to reset the stack counter to zero.

SEE ALSO

       trace-cmd(1), trace-cmd-record(1), trace-cmd-report(1), trace-cmd-start(1), trace-cmd-extract(1), trace-cmd-reset(1), trace-cmd-split(1),
       trace-cmd-list(1), trace-cmd-listen(1)

AUTHOR

       Written by Steven Rostedt, <rostedt@goodmis.org[1]>

RESOURCES

       git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git

COPYING

       Copyright (C) 2010 Red Hat, Inc. Free use of this software is granted under the terms of the GNU Public License (GPL).

NOTES

	1. rostedt@goodmis.org
	   mailto:rostedt@goodmis.org

								    06/11/2014							TRACE-CMD-STACK(1)
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