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)
OK, this ones been bugging me....
9DH21AQAE~56081~109~12/18/2003~ ~B ~ ~
I want to remove all but 1 of the trailing spaces after the last ~, there may be 2 or more trailing spaces
tried
s/\~ +/\~ /g but no go
thanks (5 Replies)
Hi
I wanted to match a line using regular expression in a file.
the line is:
CtL2b00833
the reg expression I'm using now is:
m/^(\D+)(\d+)\/)
$firstpart=$1
$secondpart=($1 . $2)
$thirdpart=$3
But for $firstpart I have digits (2) so I am getting error messages.
when I used... (1 Reply)
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)
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)
I just wrote a modsecurity rule that blocks execution on "cat /etc/passwd" from webshell. But when I use
cat /etc/passwd
it works. Ie when I add space after cat. What I need is a regular expression to ignore additional space than the first single space after cat. (2 Replies)
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)
May I know the difference between space in keyboard and ] in regular expression
I entered the following
find . -type f -print | xargs grep -n 'dt=' | cut -d":" -f3 | sed 's/^ *dt=/dt=/g'
After "^" there is a space.
and the result is...
dt=`date +%Y%m%d%H%M%S`
dt=`date +%Y%m%d`... (6 Replies)
Hi ,
I am trying to write a mod_header module rule which will look a specific url (https://partner.testing.com) and rewrite it. The header line is given below. where the url comes in between of the line. i know ^ expression can be used for match the beginning of the line. but not sure how to... (3 Replies)
Discussion started by: arumon
3 Replies
LEARN ABOUT OPENSOLARIS
re_exec
re_comp(3C) Standard C Library Functions re_comp(3C)NAME
re_comp, re_exec - compile and execute regular expressions
SYNOPSIS
#include <re_comp.h>
char *re_comp(const char *string);
int re_exec(const char *string);
DESCRIPTION
The re_comp() function converts a regular expression string (RE) into an internal form suitable for pattern matching. The re_exec() func-
tion compares the string pointed to by the string argument with the last regular expression passed to re_comp().
If re_comp() is called with a null pointer argument, the current regular expression remains unchanged.
Strings passed to both re_comp() and re_exec() must be terminated by a null byte, and may include NEWLINE characters.
The re_comp() and re_exec() functions support simple regular expressions, which are defined on the regexp(5) manual page. The regular
expressions of the form {m}, {m,}, or {m,n} are not supported.
RETURN VALUES
The re_comp() function returns a null pointer when the string pointed to by the string argument is successfully converted. Otherwise, a
pointer to one of the following error message strings is returned:
No previous regular expression
Regular expression too long
unmatched (
missing ]
too many () pairs
unmatched )
Upon successful completion, re_exec() returns 1 if string matches the last compiled regular expression. Otherwise, re_exec() returns 0 if
string fails to match the last compiled regular expression, and -1 if the compiled regular expression is invalid (indicating an internal
error).
ERRORS
No errors are defined.
USAGE
For portability to implementations conforming to X/Open standards prior to SUS, regcomp(3C) and regexec(3C) are preferred to these func-
tions. See standards(5).
SEE ALSO grep(1), regcmp(1), regcmp(3C), regcomp(3C), regexec(3C), regexpr(3GEN), regexp(5), standards(5)SunOS 5.11 26 Feb 1997 re_comp(3C)