I am going to build some commands/functions for common tasks that I have to perform (things like searching a filesystem for a certain string in a file).
I intend to write these as unix scripts. Then adding the location of these to my path.
How can I ensure that the variables specified when... (7 Replies)
Hi,
I am taking an output and redirecting it to a file name
and this is a hourly or daily process , in this case, i want my file output as
some logoutput_date_time.txt
how can i form the file name like this
for eg
i am running this command now, so
tail -f... (1 Reply)
how to make a line BLINKING in output and also how to increase font size in output
suppose in run a.sh script
inside echo "hello world "
i want that this should blink in the output and also
the font size of hello world should be big ..
could you please help me out in this (3 Replies)
I have created a custom firewall script in RHEL 4 .Let me explain the steps which i followed .
etho -Internal lan
eth1 -External lan
During the installtion of RHEL 4 ,i enabled Firewall and after booting to x windows i selected enable firewall and defined the defined and customised ports... (0 Replies)
I have a file with the following content.
> cat /tmp/internetusage.txt
6709.296322 30000 2/7/2010 0.00I am using the following awk command to calculate a percentage from field 1 and 2 from the file.
awk '{ print $1/$2*100 }' /tmp/internetusage.txt
This outputs the value "22.3643" as a... (1 Reply)
Hi,
Below is the script that takes some value from the properties file and then move the file from files folder to output folder based upon the modification time of files(configurable N days value),now at the end I want to show a customised message that if no files are moved then it shows the... (1 Reply)
Hi All,
I have around 900 Select Sql's which I would like to run in an awk script and print the output of those sql's in an txt file.
Can you anyone pls let me know how do I do it and execute the awk script? Thanks. (4 Replies)
Below script perfectly works, giving below mail output. BUT, I want to make the script mail only if there are any D-Defined/T-Transition/B-Broken State WPARs and also to copy the output generated during monitoring to a temporary log file, which gets cleaned up every week. Need suggestions.
... (4 Replies)
Hi All,
I have result log file which looks like this (below): from the content need to consolidate the result and put it in tabular form
1). Intercomponents Checking
Passed: All Server are passed.
======================================================================
2). OS version Checking... (9 Replies)
I ran the following command.
cat abc.c > abc.c
I got message the following message from command cat:
cat: abc.c : input file is same as the output file
How the command came to know of the destination file name as the command is sending output to standard file. (3 Replies)
Perl::Critic::Policy::Subroutines::ProhibitReturnSort(3)User Contributed Perl DocumentatioPerl::Critic::Policy::Subroutines::ProhibitReturnSort(3)NAME
Perl::Critic::Policy::Subroutines::ProhibitReturnSort - Behavior of "sort" is not defined if called in scalar context.
AFFILIATION
This Policy is part of the core Perl::Critic distribution.
DESCRIPTION
The behavior of the builtin "sort" function is not defined if called in scalar context. So if you write a subroutine that directly
"return"s the result of a "sort" operation, then you code will behave unpredictably if someone calls your subroutine in a scalar context.
This Policy emits a violation if the "return" keyword is directly followed by the "sort" function. To safely return a sorted list of
values from a subroutine, you should assign the sorted values to a temporary variable first. For example:
sub frobulate {
return sort @list; # not ok!
@sorted_list = sort @list;
return @sort # ok
}
KNOWN BUGS
This Policy is not sensitive to the "wantarray" function. So the following code would generate a false violation:
sub frobulate {
if (wantarray) {
return sort @list;
}
else{
return join @list;
}
}
CONFIGURATION
This Policy is not configurable except for the standard options.
CREDITS
This Policy was suggested by Ulrich Wisser and the <http://iis.se> team.
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::Subroutines::ProhibitReturnSort(3)