Hi,
Is it possible to create a dynamic array in shell script. I am trying to get the list of logfiles that created that day and put it in a dynamic array. I am not sure about it. help me
New to scripting
Gundu (3 Replies)
Writing a ksh script. If someone starts a process with:
test.ksh > date.log
How can I grab 'date.log' name as a variable in test.ksh?
I need to get the 'date.log' name (not the contents) as a variable...without entering something like 'test.ksh date.log > date.log' (4 Replies)
Is there a way to send the syslog output for a given facility to stderr or stdout?
I do not want to use the "tail" command to achieve this, I would like it to go directly to stderr.
Thanks in advance (1 Reply)
Hey everyone.
I have been trying a few filtering scripts with both SED and PERL. So far I have both of these versions working to reformat the incoming text stream (from stdin) into the corrent format (it looks good in the terminal), but I don't think that I am doing it right because the... (2 Replies)
Hello everybody,
Is there a more elegant way to make dual output (display on standard output and append to a file) while I'm executing a shell script, besides duplicating the echo command for every string?
echo "Message..." > 1
echo "Message..." >> myfile.out
Thank you for your time,... (2 Replies)
I am facing a strange error while creating posix threads:
Given below are two snippets of code, the first one works whereas the second one gives a garbage value in the output.
Snippet 1
This works:
--------------
int *threadids;
threadids = (int *) malloc (num_threads * sizeof(int));
... (4 Replies)
Hi,
I am trying to execute a command like this:
find ./ -name "*.gz" -exec sh -c 'zcat {} | awk -f parse.awk' \; >> output
If I want to print the filename, i generally use the -print argument to the find command but when I am redirecting the output to a file, how can I print just the... (2 Replies)
Hi all,
I have created 3 arrays which can have common elements in each like-
arr_a contains str1 str2 str3 str4 str5
arr_b contains str3 str6 str7 str1 str8
arr_c contains str4 str9 str10 str2
each array is created with "set -A arr_name values" command. I want to create a resultant array-say... (1 Reply)
I have awk command :
awk -F ' ' '{ print $NF }' log filename
And it gives the output as below:
06:00:00
parameters:
SDS
(2)
no
no
no
no
doc=4000000000).
information: (6 Replies)
Why does this until false; do history | head -5; done
result in a stdout infinite loop, yet until false; do history | head -5 > hist5; done
only writes it once to file hist5? Furthermore, I can hear the hard drive working on the 2nd command until I end the process, but the history | head -5 is... (1 Reply)
Perl::Critic::Policy::BuiltinFunctions::ProhibitStringyEUser3Contributed Perl DocuPerl::Critic::Policy::BuiltinFunctions::ProhibitStringyEval(3pm)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 v5.14.2 2012-06-07 Perl::Critic::Policy::BuiltinFunctions::ProhibitStringyEval(3pm)