08-26-2011
In what context? I'm not sure which "exp" you're talking about.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Is it possible to combine a regular expression with a aritmetical expression? For example, taking a 8-numbers caracter sequece and casting each output of a grep, comparing to a constant.
THX! (2 Replies)
Discussion started by: Z0mby
2 Replies
2. UNIX for Advanced & Expert Users
I have a large file encoded in Unicode that I need to convert to CSV. In general, I know how to do this by regular expression substitutions using sed or Perl, but one problem I am having is that I need to put a quotation mark at the end of each line to protect the last field. The usual regex... (1 Reply)
Discussion started by: thomas.hedden
1 Replies
3. Shell Programming and Scripting
CA_RELEASE has a value of 6. I need to check if that this is a numeric value. if not error.
source $CA_VERSION_DATA
if * ]
then
echo "CA_RELESE $CA_RELEASE is invalid"
exit -1
fi
+ source /etc/ncgl/ca_version_data
++ CA_PRODUCT_ID=samxts
++ CA_RELEASE=6
++ CA_WEEK_NO=7
++... (3 Replies)
Discussion started by: ketkee1985
3 Replies
4. Shell Programming and Scripting
Hi,
I read the book of <<unix shell programming>>. The regular expression ^\(.\)\1 matches the first character on the line and stores it in register 1. Then the expression matches whatever is stored in the register 1, as specified by the \1. The net effect of this regular expression is to match... (2 Replies)
Discussion started by: jianma
2 Replies
5. Programming
Hi all,
How am I read a file, find the match regular expression and overwrite to the same files.
open DESTINATION_FILE, "<tmptravl.dat" or die "tmptravl.dat";
open NEW_DESTINATION_FILE, ">new_tmptravl.dat" or die "new_tmptravl.dat";
while (<DESTINATION_FILE>)
{
# print... (1 Reply)
Discussion started by: jessy83
1 Replies
6. Emergency UNIX and Linux Support
Hi,
Server - MEDIAWIKI - MYSQL - CENTOS 5 - PHP5
I have a database import of close to a million pages into my wiki, mediawiki site,
the format that were left with is not pretty, and I need to find a way to clean this up and present it nicely...
I think regex is the best option as I can... (1 Reply)
Discussion started by: lawstudent
1 Replies
7. Shell Programming and Scripting
hi
i am trying to extract some specific data out of a text file using regular expressions with shell script
that is using a multiline grep .. and the tool i am using is pcregrep so that i can get compatibility with perl's regular expressions
for a sample data like this, i am trying to grab... (6 Replies)
Discussion started by: vemkiran
6 Replies
8. UNIX for Advanced & Expert Users
Hello All,
I'm trying to extract the lines between two consecutive elements of an array from a file.
My array looks like:
problem_arr=(PRS111 PRS213 PRS234)
j=0
while } ]
do
k=`expr $j + 1`
sed -n "/${problem_arr}/,/${problem_arr}/p" problemid.txt
---some operation goes... (11 Replies)
Discussion started by: InduInduIndu
11 Replies
9. UNIX for Advanced & Expert Users
I thought this would be easy to Google, but I am having trouble getting a clean result that I can understand.
I simply want to insert the the line:
My Network 192.168.1.1
After the last line that begins with ACL localnet (15 Replies)
Discussion started by: glev2005
15 Replies
10. Shell Programming and Scripting
hi All ,
I am having a large file with lots of modules as shown below
###############################################
module KKK
kksd
kskks
jsn;lsm
jsnlsn;
Ring
jjsjsj
kskmsm
jjs
endmodule
module llll
1kksd11
k232skks
j33sn;l55sm (6 Replies)
Discussion started by: kshitij
6 Replies
frexp(3M) Mathematical Library Functions frexp(3M)
NAME
frexp, frexpf, frexpl - extract mantissa and exponent from a floating-point number
SYNOPSIS
cc [ flag... ] file... -lm [ library... ]
#include <math.h>
double frexp(double num, int *exp);
float frexpf(float num, int *exp);
long double frexpl(long double num, int *exp);
DESCRIPTION
These functions break a floating-point number into a normalized fraction and an integral power of 2. They store the integer exponent in the
int object pointed to by exp.
RETURN VALUES
For finite arguments, these functions return the value x, such that x is a double with magnitude in the interval [1/2, 1) or 0, and num
equals x times 2 raised to the power *exp.
If num is NaN, NaN is returned and the value of *exp is unspecified.
If num is +- 0, +- 0 is returned and the value of *exp is 0.
If num is +-Inf, num is returned and the value of *exp is unspecified.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
SEE ALSO
isnan(3M), ldexp(3M), modf(3M), attributes(5), standards(5)
SunOS 5.10 16 Aug 2004 frexp(3M)