I want to pass arguments to a sh program and I want to use these arguments in the program as variables?
Will I use argc and argv in a main function can anyone around me write the full code please
for example when I write in th command
sh myprogram.sh argument1 argument2
I want to use... (1 Reply)
Write a nawk script that will produce the following report:
***FIRST QUARTERLY REPORT***
***CAMPAIGN 2004 CONTRIBUTIONS***
-------------------------------------------------------------------------
NAME PHONE Jan | ... (5 Replies)
Write a quick shell snippet to find all of the IPV4 IP addresses
in any and all of the files under /var/lib/output/*, ignoring
whatever else may be in those files. Perform a reverse lookup on
each, and format the output neatly, like "IP=192.168.0.1,
... (0 Replies)
Hi,
I am in /home/development/project/abc directory. Now I want to remove one file which is kept in /trial/dev/<file> directory.
I would like to do it in one command.
I tried changing directory in one command like:
pwd
/home/development/project/abc
cd ~/trial/dev/
bash: no command... (2 Replies)
Friends
Greetings. I have a RedHat 5.7 64bit virtual server on VMware ESXi 4.1. This server and other Redhat Servers are running very slow. I did some stats collection on ESXi and looks like Linux is holding the disk IO. I am not sure what is causing this behavior.
On Linux I checked the CPU... (4 Replies)
Hello everyone!
I am new here and by new i don't mean only in this place, but in this shell scripting area. I started learning about Operation Systems only 2 months ago.
I want to learn more but i found a problem which I don't really know how to solve. :confused:
I have a directory with 4... (2 Replies)
Hi guys,
one of my services in solaris 10 is in maintenance mode. When I checked why, the reason is that the service is "restarting too quickly."
# svcs -x svc:/application/management/snmpdx:default
svc:/application/management/snmpdx:default (Sun Solstice Enterprise Master Agent)
State:... (2 Replies)
Hi,
This is for Perl.
I have a while loop, and would like to process two files, the formats are given below :
access
access.<previousday>-*
How can perform a while loop on both logs, while creating the logic for access.<previousday>-* to get format like "access.20130615-124139" when... (11 Replies)
Hi,
I need help in UNIX shell script to handle the following:
I have file called File1.txt which contains data something like below:
LibraryName|BookName|Flag-Indicator|COUNT
LIB1|BOOK1|A|12
LIB1|BOOK1|A|2
LIB2|BOOK2|I|1
LIB2|BOOK1|I|4
LIB1|BOOK2|A|12
LIB1|BOOK1|I|22... (3 Replies)
Discussion started by: vfrg
3 Replies
LEARN ABOUT OSX
bytes
bytes(3pm) Perl Programmers Reference Guide bytes(3pm)NAME
bytes - Perl pragma to force byte semantics rather than character semantics
NOTICE
This pragma reflects early attempts to incorporate Unicode into perl and has since been superseded. It breaks encapsulation (i.e. it
exposes the innards of how the perl executable currently happens to store a string), and use of this module for anything other than
debugging purposes is strongly discouraged. If you feel that the functions here within might be useful for your application, this possibly
indicates a mismatch between your mental model of Perl Unicode and the current reality. In that case, you may wish to read some of the perl
Unicode documentation: perluniintro, perlunitut, perlunifaq and perlunicode.
SYNOPSIS
use bytes;
... chr(...); # or bytes::chr
... index(...); # or bytes::index
... length(...); # or bytes::length
... ord(...); # or bytes::ord
... rindex(...); # or bytes::rindex
... substr(...); # or bytes::substr
no bytes;
DESCRIPTION
The "use bytes" pragma disables character semantics for the rest of the lexical scope in which it appears. "no bytes" can be used to
reverse the effect of "use bytes" within the current lexical scope.
Perl normally assumes character semantics in the presence of character data (i.e. data that has come from a source that has been marked as
being of a particular character encoding). When "use bytes" is in effect, the encoding is temporarily ignored, and each string is treated
as a series of bytes.
As an example, when Perl sees "$x = chr(400)", it encodes the character in UTF-8 and stores it in $x. Then it is marked as character data,
so, for instance, "length $x" returns 1. However, in the scope of the "bytes" pragma, $x is treated as a series of bytes - the bytes that
make up the UTF8 encoding - and "length $x" returns 2:
$x = chr(400);
print "Length is ", length $x, "
"; # "Length is 1"
printf "Contents are %vd
", $x; # "Contents are 400"
{
use bytes; # or "require bytes; bytes::length()"
print "Length is ", length $x, "
"; # "Length is 2"
printf "Contents are %vd
", $x; # "Contents are 198.144"
}
chr(), ord(), substr(), index() and rindex() behave similarly.
For more on the implications and differences between character semantics and byte semantics, see perluniintro and perlunicode.
LIMITATIONS
bytes::substr() does not work as an lvalue().
SEE ALSO
perluniintro, perlunicode, utf8
perl v5.16.2 2012-08-26 bytes(3pm)