i have a set of regular expressions. The words in the regular expression should be used to replace the i/p with hyphens '---'. i need perl script to evaluate these regular expression. the words in the regexes when found in the i/p file should be replaced with hyphens '---'.
the set of regular expressions are:
1.\bTAKE\s?|THANK|DANC(ER|ED|ING|ME|S)\b
After your private message, I'm not convinced this is not homework. Nevertheless, I'll give you the benefit of the doubt and help you with one example.
In Perl, to turn the matching regular regular expression into a substituting one, you go from m/regexp/ to s/regexp/replacement/. So:
The "i" at the end, ensures upper and lower case is handled. The "g" makes the substitution everywhere in the string, not just the first occurrence.
I am writing script that will act like the 'comm' utility. My
problem is when trying to read whether the user has entered -123 or -1
or -1...etc.
I currently have:
if(m/??/g){
print "Good.\n";
}
So, this should check for all... (1 Reply)
Hello,
$line=USING (FILE '/TEST1/FILENAME'5000)
I want to reterive the value between ' and ) which is 5000 here.
i have tried out the following expressions ...
Type 1 : $Var1=`sed -e 's/.*\' //' -e 's\).*$/' $line`;
Type 2 : $Var1=`echo $line | awk -F"\'" '{print $2}' | awk -F"\\)"... (1 Reply)
Hello,
$line=USING (FILE '/TEST1/FILENAME'5000)
I want to reterive the value between ' and ) which is 5000 here.
i have tried out the following expressions ...
Type 1 : $Var1=`sed -e 's/.*\' //' -e 's\).*$/' $line`;
Type 2 : $Var1=`echo $line | awk -F"\'" '{print $2}' | awk -F"\\)"... (3 Replies)
Hello guys/gals,
i am sorry as this is probably very simply but i am slowly learning perl and need to convert some old korn shell scripts.
I need to be able to search a file line by line but only match a string at particular location on that line, for example character 20-30. So my file... (4 Replies)
Hello everybody,
I am trying to connect from hp-ux to win 2003 using perl's Net::Telnet module. Seeing the examples in couple of web sites, I saw I have to declare a Prompt =>
Can somebody please tell me what my regular expression should be? The prompt after I log in is:
...
login:... (1 Reply)
Hello all,
i am in a bit of dilema here. i dont know any thing about perl or python. only know a little bit of awk. now unable to take a decission as to which language to go for. my requirement is building a testing framework.suite which will execute ssytem comands remotely on unix... (2 Replies)
I need to write a K shell script to find full file names , line numbers and lines which have words meeting either of following 2 criterias -
1)words which are 6 to 8 character long and alphanumeric.
2)Minimum 8 characters, one upper case, one lower case letter, one of the special characters... (1 Reply)
Hi Team,
I have two strings like:
xxx|yyy|Arizona Cardinals| Tell Cardinals | Cardinals
bbb|Bell Earn, Jr | Bell Earn | Jayhawks | hawks
I have a lookup file which has a set of strings. These need to be removed from above two strings
Lookup file Contents:
Bell Earn, Jr
hawks... (2 Replies)
im trying to extract some tags between and in a file..for eg..the file format is
I want the and extracted from the file i.e the tags which is present b/w and
I have the regex for extracting the tags from the whole file but how to specify my search within the and... (1 Reply)
Hi,
I have a shell script in tcsh to which I pass an argument, the length of which can vary. The possible values of the argument are the letters -c,s,i,q,a. and also a combination of these letters. (e.g: cs,si,ca,iq,qa,csq,acs,csia ..etc). The order of the letters does not matter.
My problem... (2 Replies)
Discussion started by: Vaisakh P
2 Replies
LEARN ABOUT ULTRIX
re_exec
regex(3) Library Functions Manual regex(3)Name
re_comp, re_exec - regular expression handler
Syntax
char *re_comp(s)
char *s;
re_exec(s)
char *s;
Description
The subroutine compiles a string into an internal form suitable for pattern matching. The subroutine checks the argument string against
the last string passed to
The subroutine returns 0 if the string s was compiled successfully; otherwise a string containing an error message is returned. If is
passed 0 or a null string, it returns without changing the currently compiled regular expression.
The subroutine returns 1 if the string s matches the last compiled regular expression, 0 if the string s failed to match the last compiled
regular expression, and -1 if the compiled regular expression was invalid (indicating an internal error).
The strings passed to both and may have trailing or embedded newline characters; they are terminated by nulls. The regular expressions
recognized are described in the manual entry for given the above difference.
Diagnostics
The subroutine returns -1 for an internal error.
The subroutine returns one of the following strings if an error occurs:
No previous regular expression
Regular expression too long
unmatched (
missing ]
too many () pairs
unmatched )
See Alsoed(1), ex(1), egrep(1), fgrep(1), grep(1)regex(3)