I am looking for the correct syntax on the expr command in UNIX. I have a script that I am building at the moment. the script is creating file1 that is an actual .sql file that is going inside the oracle database to get some information in there. It take that information, puts it inside another... (2 Replies)
Hi All,
I might be making a silly mistake but I need ur help.
I have initialized various variables:
cur_month=`date +%m`
cur_year=`date +%y`
last_year=`expr $cur_year \- 1`
It works fine for cur_month & cur_year....but has problems with last_year.
FOR LAST YEAR IT GIVES A FOLLOWING... (2 Replies)
Hi All,
I have created 85 users on Linux server.
I use bsh shell for all users.But after any user get logged in on unix,he/she is not able to access the expr command.So anyone can tell me that if i have to include some files to access expr command.Because when i write-> expr 6+2 on $ prompt i'll... (1 Reply)
hi guys....
i hava a command expr... where i m adding a value in a loop
like
Tc=`expr $Tc\+ $l`
where
Tc is declred as a variable and every time l contains a new vaue
if
Tc =0 initially
and l =2
Tc should be equal to 0+ 2
and then
l = 4
Tc = 2+4
and dispaly as 6
but after... (5 Replies)
:)
hi Unix gurus,
Pls consider the following piece of code
str='hello'
length=echo $str|wc -c
echo $length
y= ` expr \( 80 - $length \) `
echo $y
:confused:
The last echo stmt is displaying 0 as the result.
If i put direct value like 6 instead of $length in i 3rd stmt it is giving... (8 Replies)
Hi
Can anyone explain me the usage of this command and the arguments used here and what will be the expected output :
v_num=`expr nav_d_20100204_1759 : '*\(*\)'`
what will be the value returned in v_num.
Thanks in Advance!!!
Regards
Naveen Purbia (3 Replies)
Hi,
I am trying to code a unix function to calculate date difference between two date variables. I am stuck at a point where I am trying to convert hours into minutes. Below is the code I am doing.
function get_elapsed_time
{
export PROPS_FILE=temp.properties
export... (8 Replies)
I'm trying to check if a variable'd string is only one character and use that in an if statement the only way I could find is:
$expr "${var}" : . # expr STRING : regrep
where the "." is the grep wildcard for any single character.
Whats wrong with my code here and is there a... (3 Replies)
Discussion started by: Tewg
3 Replies
LEARN ABOUT OPENSOLARIS
pcre_get_named_substring
PCRE_GET_NAMED_SUBSTRING(3) Library Functions Manual PCRE_GET_NAMED_SUBSTRING(3)NAME
PCRE - Perl-compatible regular expressions
SYNOPSIS
#include <pcre.h>
int pcre_get_named_substring(const pcre *code,
const char *subject, int *ovector,
int stringcount, const char *stringname,
const char **stringptr);
DESCRIPTION
This is a convenience function for extracting a captured substring by name. The arguments are:
code Compiled pattern
subject Subject that has been successfully matched
ovector Offset vector that pcre_exec() used
stringcount Value returned by pcre_exec()
stringname Name of the required substring
stringptr Where to put the string pointer
The memory in which the substring is placed is obtained by calling pcre_malloc(). The convenience function pcre_free_substring() can be
used to free it when it is no longer needed. The yield of the function is the length of the extracted substring, PCRE_ERROR_NOMEMORY if
sufficient memory could not be obtained, or PCRE_ERROR_NOSUBSTRING if the string name is invalid.
There is a complete description of the PCRE native API in the pcreapi page and a description of the POSIX API in the pcreposix page.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Availability | SUNWpcre |
+--------------------+-----------------+
|Interface Stability | Uncommitted |
+--------------------+-----------------+
NOTES
Source for PCRE is available on http://opensolaris.org.
PCRE_GET_NAMED_SUBSTRING(3)