I need to multiply the value of a variable and then store it in another variable. I have EXPHOURINSEC=$(($EXPDATEHOUR * 3600)) but i get an error saying the * is unexpected.
Im using ksh (4 Replies)
All I want to do is find 5!.
read num
num={1..5}
while
do
f=
done
echo f
Error Msg. line 5: ${1..5} bad substitution
line 6: integer expression expected
Line 5 is the num=...
Line 6 is the "while" statement
I am new at this, and I am really, really trying.
Please... (14 Replies)
Hi
I have 2 files:-
1. List of files which consists of names of some output files.
2. A delimited file; delimted by "|"
I want to replace the value of the $23 (23rd column) in the delimited file with name in the first file. It is always position to position. Meaning first row of the first... (5 Replies)
Hi all,
I have 2 files. One contains only 1 column and other one contains 2 columns, let say 1_col.txt and 2_col.txt respectively. Here, I will try to explain with an example.
Input files :
1_col.txt 2_col.txt
a a b
x a c
p ... (5 Replies)
Basically, my problem is to multiply my file to $c times. Is there a faster way to do this?
c=100
while ]; do
cat file1.txt
((c=$c-1))
done > file2.txt
I appreciate your help! (6 Replies)
- I have two files (File 1 and File 2) and the contents of the files are mentioned below.
- I am trying to compare the values of Column1 of File1 with Column1 of File2. If a match is found, print the corresponding value from Column2 of File1 in Column5 of File2.
- I tried to modify and use... (10 Replies)
Hi Everyone !
I have two files with the same configuration
and I want to multiply corresponding values and write the result in a file.
Let say 2 header lines and then lines of values (with not constant number of columns):
more file1.txt -->
BLABLABLA
BLABLABLA
1 2 3 4
1 2 3
1 2
1... (7 Replies)
I have a file containing multiple values, some of them are pipe separated which are to be read as separate values and some of them are single value all are these need to store in variables.
I need to read this file which is an input to my script
Config.txt
file name, first path, second... (7 Replies)
Hi,
I want to replace a chain of if-else statement in an old AWK file with values from Db2 table or CSV file. The part of code is below...
if (start_new_rec=="true"){
exclude_user="false";
user=toupper($6);
match(user, "XXXXX.");
if (RSTART ==2 ) {
... (9 Replies)
Hi,
I have two files with values in both.
File1:
cat 2 3
dog 4 5
elephant 6 7
camel 2 3
File2:
----+--gkf;ajf=
---+----
+----- cat -------=----+ 3 | 4 ----- dog ------++-- 5 | 9 ----++-- elephant |
5 | 7
---++ camel ------ ++++_---- || 8 | 9
I want the final file as:
cat 4... (1 Reply)
Discussion started by: npatwardhan
1 Replies
LEARN ABOUT LINUX
bytes
bytes(3pm) Perl Programmers Reference Guide bytes(3pm)NAME
bytes - Perl pragma to force byte semantics rather than character semantics
NOTICE
This pragma reflects early attempts to incorporate Unicode into perl and has since been superseded. It breaks encapsulation (i.e. it
exposes the innards of how the perl executable currently happens to store a string), and use of this module for anything other than
debugging purposes is strongly discouraged. If you feel that the functions here within might be useful for your application, this possibly
indicates a mismatch between your mental model of Perl Unicode and the current reality. In that case, you may wish to read some of the perl
Unicode documentation: perluniintro, perlunitut, perlunifaq and perlunicode.
SYNOPSIS
use bytes;
... chr(...); # or bytes::chr
... index(...); # or bytes::index
... length(...); # or bytes::length
... ord(...); # or bytes::ord
... rindex(...); # or bytes::rindex
... substr(...); # or bytes::substr
no bytes;
DESCRIPTION
The "use bytes" pragma disables character semantics for the rest of the lexical scope in which it appears. "no bytes" can be used to
reverse the effect of "use bytes" within the current lexical scope.
Perl normally assumes character semantics in the presence of character data (i.e. data that has come from a source that has been marked as
being of a particular character encoding). When "use bytes" is in effect, the encoding is temporarily ignored, and each string is treated
as a series of bytes.
As an example, when Perl sees "$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 v5.12.1 2010-04-26 bytes(3pm)