I'm using sed for Windows at a WinNT command prompt. Wrapping the expressions with single quotes doesn't work. I have to use double quotes. Is this the norm for the Windows implementation? (2 Replies)
I'm not very familiar with the ssh command. When I tried to set a variable and then echo its value on a remote machine via ssh, I found a problem. For example,
$ ITSME=itsme
$ ssh xxx.xxxx.xxx.xxx "ITSME=itsyou; echo $ITSME"
itsme
$ ssh xxx.xxxx.xxx.xxx 'ITSME=itsyou; echo $ITSME'
itsyou
$... (3 Replies)
Hi,
I am trying to write the following command as an alias in my .bashrc file.
bjobs -u all | awk '{if (NR > 1) {username++;}}END{{print"\nJOBS BY USER:\n"} for (i in username) {print username,i;}{print"\n Total Jobs=",NR-1,"\n" }}'
The command simply puts how many jobs each user is... (2 Replies)
Hi guys, I have a sed line in double quotes which works fine, but I want it to be in single quotes
here is the sed line
sed "/abc_def/s/\'.*\'/\'\${abc_def}\'/"
can some one give the equivalent to the above script in single quotes
Thanks a ton (5 Replies)
Unix superusers,
I am new to unix but would like to learn more about grep. I am very familiar with regular expressions as i have used them for searching text files in windows based text editors. Since I am not very familiar with Unix, I dont understand when one should use GREP with the... (2 Replies)
Hi Unix experts,
Believe me, this forum has been really great help and I searched for many things that were already answered before open new post that were just new versions of old one, but with this one, I just can't simply move any forward.
This must be quite easy, but I cant find where I... (1 Reply)
Hi i have to insert the below line into a specific line number of another file
export MBR_CNT_PRCP_TYPE_CODES_DEL="'01','02','04','05','49','55','UNK'"
I have passed the above line to a variable say ins_line. I have used below command to perform the insert
awk 'NR==3{print "'"${ins_line}"'"}1'... (1 Reply)
Hi,
Trying to change the prompt. I have the following code.
export PS1='
<${USER}@`hostname -s`>$ '
The hostname is not displayed
<abc@`hostname -s`>$ uname -a
AIX xyz 1 6 00F736154C00
<adcwl4h@`hostname -s`>$
If I use double quotes, then the hostname is printed properly but... (3 Replies)
Hi Froum.
I have tried in vain to find a solution for this problem - I'm trying to replace any double quotes within a quoted string with a single quote, leaving everything else as is.
I have the following data:
Before:
... (32 Replies)
Hi,
I have a grep command which searches if a particular word ends in a pattern
grep 'ee\>' *
The above command searches for any word that ends with ee across files and works as expected.
I need to parametrize ee and run the command
so I tried the following but none work
A=ee
grep... (1 Reply)
Discussion started by: wahi80
1 Replies
LEARN ABOUT DEBIAN
lib::core::only
lib::core::only(3pm) User Contributed Perl Documentation lib::core::only(3pm)NAME
lib::core::only - Remove all non-core paths from @INC to avoid site/vendor dirs
SYNOPSIS
use lib::core::only; # now @INC contains only the two core directories
To get only the core directories plus the ones for the local::lib in scope:
$ perl -Mlib::core::only -Mlocal::lib=~/perl5 myscript.pl
To attempt to do a self-contained build (but note this will not reliably propagate into subprocesses, see the CAVEATS below):
$ PERL5OPT='-Mlib::core::only -Mlocal::lib=~/perl5' cpan
DESCRIPTION
lib::core::only is simply a shortcut to say "please reduce my @INC to only the core lib and archlib (architecture-specific lib) directories
of this perl".
You might want to do this to ensure a local::lib contains only the code you need, or to test an App::FatPacker tree, or to avoid known bad
vendor packages.
You might want to use this to try and install a self-contained tree of perl modules. Be warned that that probably won't work (see
"CAVEATS").
This module was extracted from local::lib's --self-contained feature, and contains the only part that ever worked. I apologise to anybody
who thought anything else did.
CAVEATS
This does not propagate properly across perl invocations like local::lib's stuff does. It can't. It's only a module import, so it only
affects the specific perl VM instance in which you load and import() it.
If you want to cascade it across invocations, you can set the PERL5OPT environment variable to '-Mlib::core::only' and it'll sort of work.
But be aware that taint mode ignores this, so some modules' build and test code probably will as well.
You also need to be aware that perl's command line options are not processed in order - -I options take effect before -M options, so
perl -Mlib::core::only -Ilib
is unlike to do what you want - it's exactly equivalent to:
perl -Mlib::core::only
If you want to combine a core-only @INC with additional paths, you need to add the additional paths using -M options and the lib module:
perl -Mlib::core::only -Mlib=lib
# or if you're trying to test compiled code:
perl -Mlib::core::only -Mblib
For more information on the impossibility of sanely propagating this across module builds without help from the build program, see
http://www.shadowcat.co.uk/blog/matt-s-trout/tainted-love <http://www.shadowcat.co.uk/blog/matt-s-trout/tainted-love> - and for ways to
achieve the old --self-contained feature's results, look at App::FatPacker's tree function, and at App::cpanminus's --local-lib-contained
feature.
AUTHOR
Matt S. Trout <mst@shadowcat.co.uk>
LICENSE
This library is free software under the same terms as perl itself.
COPYRIGHT
(c) 2010 the lib::core::only "AUTHOR" as specified above.
perl v5.14.2 2011-02-18 lib::core::only(3pm)