grep and assign it to variable Post: 302186830

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assign a value to variable

I have to assign a result of a query to a vairable like this how can i do this Query = select count(*) from table x=`db2 ${Query}| sed -n '4p'` but this doesn't work, is there any other way to assign the result without redirecting the result to temp file. . Thanks Mark.

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assign a value to a variable

I have a list of names in a file. i want to assign those names to a variable in such a manner eg: $cat file.txt pete lisa john var=pete-lisa-john how do i do this in shell scripting?

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assign subst|grep|sed command result to a variable

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assign awk's variable to shell script's variable?

Dear All, we have a command output which looks like : Total 200 queues in 30000 Kbytes and we're going to get "200" and "30000" for further process. currently, i'm using : numA=echo $OUTPUT | awk '{print $2}' numB=echo $OUTPUT | awk '{print $5}' my question is : can I use just one...

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Hi, I'm trying to assign a grep result to a variable but instead of having all grep result's assigned to the variable, would it be possible to assign the first match, do something, then move onto the next match and assign it to that variable and so on until all matches have been completed I...

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Need to pass variable in a command and assign value to a variable

Hello All, Hope you're doing well ! I am trying below command to be passed in a shell script, header_date_14 is a variable and $1 is the name of a file I intend to pass as a command line argument, however command line argument is not being accepted. header_date_14=$(m_dump...

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How can I assign awk's variable to shell script's variable?

I have the following script, and I want to assign the output ($10 and $5) from awk to N and L: grdinfo data.grd | awk '{print $10,$5}'| read N L output from gridinfo data.grd is: data.grd 50 100 41 82 -2796 6944 0.016 0.016 3001 2461. where N and L is suppose to be 3001 and 100. I use...

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Assign value to variable

Hi Guys, I need to assign the value of which has rows to a variable, Can you advise how to do that hive --orcfiledump /hdfs_path/ | grep "Rows" Rows: 131554 I need to assign this row count itself to a unix variable count=$(hive --orcfiledump /hdfs_path/ | grep "Rows") Expected ...

LEARN ABOUT CENTOS

perl::critic::policy::builtinfunctions::prohibitstringyeval

Perl::Critic::Policy::BuiltinFunctions::ProhibitStringyEUser3Contributed Perl DocumePerl::Critic::Policy::BuiltinFunctions::ProhibitStringyEval(3)

NAME

       Perl::Critic::Policy::BuiltinFunctions::ProhibitStringyEval - Write "eval { my $foo; bar($foo) }" instead of "eval "my $foo; bar($foo);"".

AFFILIATION

       This Policy is part of the core Perl::Critic distribution.

DESCRIPTION

       The string form of "eval" is recompiled every time it is executed, whereas the block form is only compiled once.  Also, the string form
       doesn't give compile-time warnings.

	   eval "print $foo";	     # not ok
	   eval {print $foo};	     # ok

CONFIGURATION

       There is an "allow_includes" boolean option for this Policy.  If set, then strings that look like they only include a single "use" or
       "require" statement (with the possible following statement that consists of a single number) are allowed.  With this option set, the
       following are flagged as indicated:

	   eval 'use Foo';	       # ok
	   eval 'require Foo';	       # ok
	   eval "use $thingy;";        # ok
	   eval "require $thingy;";    # ok
	   eval "use $thingy; 1;";     # ok
	   eval "require $thingy; 1;"; # ok

	   eval 'use Foo; blah;';      # still not ok
	   eval 'require Foo; 2; 1;';  # still not ok
	   eval 'use $thingy;';        # still not ok
	   eval 'no Foo';	       # still not ok

       If you don't understand why the number is allowed, see Perl::Critic::Policy::ErrorHandling::RequireCheckingReturnValueOfEval.

       This option inspired by Ricardo SIGNES' Perl::Critic::Policy::Lax::ProhibitStringyEval::ExceptForRequire.

SEE ALSO

       Perl::Critic::Policy::ControlStrucutres::RequireBlockGrep

       Perl::Critic::Policy::ControlStrucutres::RequireBlockMap

AUTHOR

       Jeffrey Ryan Thalhammer <jeff@imaginative-software.com>

COPYRIGHT

       Copyright (c) 2005-2011 Imaginative Software Systems.  All rights reserved.

       This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.  The full text of this license
       can be found in the LICENSE file included with this module.

perl v5.16.3							    2014-06-09	    Perl::Critic::Policy::BuiltinFunctions::ProhibitStringyEval(3)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

assign a value to variable

Discussion started by: markjason

2. Shell Programming and Scripting

assign a value to a variable

Discussion started by: Shivdatta

3. Shell Programming and Scripting

assign subst|grep|sed command result to a variable

Discussion started by: snowbiker99

4. Shell Programming and Scripting

assign awk's variable to shell script's variable?

Discussion started by: tiger2000