Hi all,
I'm stuck on this last part...am running a simple script under AIX to extract NetView host IP addresses. The line below returns the IP address in parenthesis with a trailing colon, i.e.
ping -c 1 $name |grep \( | awk '{ print $3 }' --------> returns
(a.b.c.d):
How can I only... (10 Replies)
Hi ALL,
I'm new to this forum.
Thanks and congrats to all for their great efforts building this site simply superb for all unix administrators.
My requirement is to remove extensions of the files in the current directory. I'm doing it using below script which is working but i think it is... (12 Replies)
hi:
i have several thousand files from users and of course they use all kind of characters on filenames. I have things like:
My special report (1999 ) Lisa & Jack's work.doc
crazy.
How do I remove all this characters in the current dir and subdirs too?
Thanks. (3 Replies)
Hi all,
I have this basic script to remove, in this case 9 characters from the end of a file name. This is what I have so far,
for file in *.mov
do
newname=`echo $file | sed 's/\(.*\)........./\1/' `
mv "$file" "$newname"
done
The problem is that it removes the file extension as well.... (2 Replies)
Hello,
I got files full path in a text file like that
/main/k/kdelibs/kdelibs4c2a_3.5.10.dfsg.1-2ubuntu7_i386.deb
/main/k/kdelibs-experimental/libknotificationitem-dev_4.3.2-0ubuntu1_i386.deb
/main/k/kdemultimedia/dragonplayer_4.3.2-0ubuntu1_i386.deb... (13 Replies)
Hi,
I have some files with some extension e.g. abc.xml.REMOVE,xyz.xml,efg.xml.REMOVE .
I have to remove the .REMOVE extension. I can display it using the below script but cannot rename it.
ls -l|sed 's/\.REMOVE//'
How can I rename this?
Thanks in advance (7 Replies)
Hi, I need a bit of help.
I've used awk to get the first 7 characters of a file -
awk '{print substr($0,0,7)}' test.csv
How do I now take this variable to rename test.csv to variable.csv ?
Any help or advice would be greatly appreciated! (2 Replies)
Hi all
i am new for the shell scripting can any one help me with my requirments . i want to delete file older than 21 days everything works fine but in that dir i got the files with should not be deleted with particular extension like (.info):confused:here is the script i wrote .can anyone... (5 Replies)
Hi All!
Please can someone help, I have a dir with the following files:
~-rw-r--r-- 1 emmuser users 2087361 Oct 16 15:50 MPGGSN02_20131007234519_24291.20131007
-rw-r--r-- 1 emmuser users 2086837 Oct 16 15:50 MPGGSN02_20131007233529_24272.20131007
-rw-r--r-- 1 emmuser ... (7 Replies)
Hello,
I am trying to print searched multiple keywords in multiple files.
It is almost okay with the code but the code puts filename in front of each line.
How may I get rid of it?
-grep -A1 'word1' *.txt | grep -A1 'word2' | grep -A1 'word3'
I expect:
Real outcome:
How may I... (3 Replies)
Discussion started by: baris35
3 Replies
LEARN ABOUT MOJAVE
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 v5.18.2 2013-11-04 bytes(3pm)