Hi,
I want to write a shell script which increments a particular column in a row from a text file and then adds another row below the current row with the incremented value .
For Eg .
if the input file has a row :
abc xyz lmn 89 lm nk o p
I would like the script to create something like... (9 Replies)
Hi All,
I would like to have a script which is able to perform the below.
Print the whole row if column1 which is "0001" for the below example is the first occurrence. Subsequent "0001" occurrence will not be printed out and so on.
Can any expert help ?
Input:
0001 k= 40
0001 k= 2... (7 Replies)
I want to check if every <Part> element has corresponding <Description> in this sample XML.
....<Lot Of XML>
<Inv lineNumber="2">
<Item>
... (4 Replies)
Hi Friends,
I have a single column data like below.
1
2
3
4
5
I need the output like below.
0
1
2
3
4
where each row (including first row) subtracting from first row and the result should print below like the way shown in output file.
Thanks
Sid (11 Replies)
Hi.
How can we print those rows of file2 which are mentioned in file1. first character of file1 is a row number.. for eg
file1
1:abc
3:ghi
6:pqr
file2
a abc
b def
c ghi
d jkl
e mno
f pqr
... (6 Replies)
I have a table with this structure:
cola colb colc
1 19 lemon
20 31 lemon
32 100 lemon
159 205 cherries
210 500 cherries
and need to parse it into this format:
cola colb colc
1 100 lemon
159 500 cherries
So I need the first row of cola and the last row of colb if colc has the... (3 Replies)
Hello,
I have this table:
chr1_16857_17742 - chr1 17369 17436 "ENST00000619216.1"; "MIR6859-1"; - 67
chr1_16857_17742 - chr1 14404 29570 "ENST00000488147.1"; "WASH7P"; - 885
chr1_16857_18061 - chr1 ... (5 Replies)
Discussion started by: coppuca
5 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This pragma reflects early attempts to incorporate Unicode into perl and has since been superseded.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)