In Perl. I can't find the global variable for $_ (except not $_ it's the one to specify AFTER the matched string.) its dollar sign then something else. Does anyone have a cheat sheet for global symbols?
View 1 RepliesOne of my application generates a text file with an XML output in it. I need to read that log files and if the output does not match to a string in couple of tags it should create a log file with the file name and the the tag name.
The two tags where the string should match is:
Identity format tag should always be JPEG , well- formed and valid status tags should be true.
sample output file:
I want to read a input from user and output something like 'inputcd', which has to escape all backslashes if using double-quote. For instance, the following code would work.
Just curious if any other way I could do it without specify all backslashes? Since that takes much efforts when the sequence is long.
Code:
I am new to perl and not able to understand all the pattern matching.
I using this script to send the status to another Nagios server using ncsa. Nsca don't transmit "()" So I need to remove them before sending.
Currently I am using
Code:
for the string
Quote:
This is working fine but its is not working when there is change inside the bracket for e.g (6290)
I want to change this code to work for any change with in the brackets.
I have a requirement like this..this just a sample script...
Code:
when i run this scipt...
Code:
Code:
It is appended in the same line...
I want it to be added to the next line.....
I want to do this by explitly using the filehandles in perl....and not with redirection operators in shell.
In my perl script I'd like to test if a string is written in uppercase letters or not. How can I do that? This type of test don't seem to work, so there must be other ways of doing this:
Code:
...return true.
I can create a subroutine that compares each character aginst a list of uppercase letters, but I'm hoping there's allready a build in routine in perl that does this...
I have question about replacing a string in a file.
How can I replace the printerb's 10.1.1.1 to something else(10.1.1.2, for example) without replace printera's 10.1.1.1 accidentally?
I have tried perl -e -pi "s/10.1.1.1/10.1.1.2/g" /etc/hosts. but, perl replace both 10.1.1.1 to 10.1.1.2.
how do you include a string variable as part of a regex in Perl?
View 5 Replies View RelatedWhat is the best way to merge lines, in sed, awk or perl, that occur between certain strings? I'm new to sed scripting and I have been working on this for some time now. I have a large file (sample below) that I need to edit.
What I need looks something like this.
I'm working with a very large file so simply merging all the lines then adding a new line character before ">contig" and after "translated" won't work, at least not with sed.
I am new to perl and am having trouble adding some strings together.
My full code is below:
The problem is $NewCommandB is always split into two lines, where the second line contains the "/atlas2/<blah>/<etc>/..." string. Since I am generating a .sh file to execute a lot of similar commands I need the string to all be on one line. Any idea why I get this behaviour and any suggestion on how to tell perl to make $NewCommandB a one line string?
Btw for completeness finalFileList.txt contains just file names one line after another:
I want to know the Perl command to replace a string by pointing the line number. I know how to replace a string without pointing a line number but I am in need to replace only the two matching string in a file
View 6 Replies View RelatedI am trying to strip the numbers from the 5th columns and just get letters - in perl - i tried using subsrt, chop. and a regex -
what i want to get is:
i tired appending a regex perl -nle 'print /(w{1,20})d{1-20} but it did not work.
In a file,
I need to remove a part of string: /o
string:
or
the string can be
here I need to remove /d2
So, I need to remove everything after when I get last /
what's the equivalent code of Perl?sed -i 777,2545!d somefileObviously it extract lines of somefile between that 2 digits .
View 1 Replies View RelatedI wanted to find and replace a string from a perl file. I have written a script in bash which runs the following command.
perl -pi -e "s/$findstring/$replacestring/" testfile
where as $findstring = print F_WC_TMP"$line
";
and $replaceString = $line = join ' ', split ' ', $line; print F_WC_TMP"$line
";
But when I am running the above command, i think it is replacing the $findstring with the above mentioned string and hence it contains a $line, it is looking for the variable $line and not finding the exact string. I am confused about how to search for a string that contains $ in it and replace it with another $string.
I get an error when typing perl build.pl: Code: Cannot locate Unicode/String.pm in @INC
View 11 Replies View Relatedcopy string a to string b and change string b with toupper() and count the chars
View 3 Replies View RelatedI have script that I'm working on that updates a username in all the files that are called blah.inc for my framework. since i host a bunch of these web apps i need to do it to all of them. so I need to figure out how to update these files automagically with out me watching it to call vim every time. heres what I have so far
Code:
This finds the files but now i need to figure out how to do s/bob/fred/g on those files.
The below snippet works fine until I use strict. Then it dies with the following error: uote:Can't use string ("html") as an ARRAY ref while "strict refs" in use at ./filetest3 line 18.I want to create @lists based on the $scalars in @type. However, "my @$ext = ()"; and push (@$ext, @files); do not play nice with strict. How do I get around this?Quote:
#!/usr/bin/perl -w
system clear;
use strict;
[code]...
I am trying to zip up my Home directory (zip -r -9 /Destination /home/joe) & when I do I get the error below in a constant loop until I hit ctrl-c to stop. This use to work fine. The only change I made lately was change the permissions to 700 but I don't see how this would do anything.Quote:
zip warning: name not matched: /home/joe/.wine/drive_c/users/joe/My Documents/.wine/drive_c/users/joe/My Documents/.wine/drive_c/users/joe/My Documents/.wine/drive_c/users/joe/My Documents/.wine/drive_c/users/joe/My Documents/.wine/drive_c/users/joe/My Documents/.wine/drive_c/users/joe/My Documents/.wine/drive_c/users/joe/My
[code]....
I have two major issues, and one minor one, after I started using Ubuntu, I tried searching the forum for them, but couldn't find anything relevant to my problems.First issue: Screenshots and the cursor.This is probably a very easily fixed issue, but none-the-less, I can not figure it out.How do I NOT include the cursor in my screenshots on Ubuntu 9.10?What I do is, I press the Prt Scrn button, and my cursor is always there in the image, and I don't want that.Second is pidgin.I love it, but every time I boot it up, my friendly name is reverted back to firefoxfag.I think it has something to do with me using gmail for msn, but I'm not sure...Also, as a last very small issue, the global hotkeys on audacious don't respond unless i open preferences, open settings for global hotkeys, then close down the settings..
View 4 Replies View RelatedUsing the regex.h functions, how do you:
1) get the matched strings?
2) get the strings that matched sub-expressions?
I recently reinstalled the B module for perl. Now I found out it didn't just do that, it installed a whole new copy of perl into /usr/local/bin/perl. When I type 'which perl' at the terminal, it says '/usr/local/bin/perl' instead of '/usr/bin/perl'. Normally, this wouldn't bother me. But I installed the one in local/bin without threading support. The one that comes with the system already is build with threading support, which is why I want to switch back to the system perl, and possibly remove the one in /usr/local/bin.
So how do I change it so that the result of 'which perl' returns as '/usr/bin/perl'? And what do I have to do to remove /usr/local/bin/perl?
The reason I need threading support is because I'm designing a file copier that copies several chunks of a file simultaneously to speed up the copying process. Guaranteed a useful script if it works.
I have a String that I would like to sign using a given RSA Private key. I thought this would be relatively easy but I have not been able to find out how to do it, unless I'm looking to far into a simple problem. Do i have to put the string into a file, and sign the file, or can i just sign the string/message?
View 7 Replies View RelatedI have two text file named 1.txt & 2.txt.
1. txt contains 5 laks of mobile number.
2. txt has 60 laks of mob no.
Situation is that I want to find and delete numbers in 2.txt which already in 1.txt. Any perl or bash script or any other way to get the work done.
I tried the following:
#! /bin/bash
IFS=$'
' for NAME in $(cat one.txt)
do sed -ie "|^$NAME$|d" two.txt done
echo "***DONE***"
It works well with smaller file but it take very very long time even processing 10 thousand numbers.
I remember reading that using sed, you can do this with parentheses: s/abc(something)def/(something)else/g I can't find an explanation of how to do something like this with Awk. Say you have this in an HTML file, where (number) stands for a one or two-digit number:
<sup>(number)</sup>
And you want to change that to this:
<a name="(number)t" href="#(number)b"><sup>(number)</sup></a>
How would this be possible? Would you have to use sed?
need to modify some scripts to repeat the commands in them until a variable returns a proper value. I need it to add some redundancy to some scripts i use to upload files to a remote server.This is an example of a portion of those scripts:
Code:
################## site UPLOAD ##################
site_login=$(curl -c $site_cookie -L -F user=$site_user -F pass=$site_password -F
[code]....
Is there any way to add a character to the end of a line when a certain match text is matched. I have a text file where any line that contacts text XYZ a z is placed at the end.
View 1 Replies View RelatedI'm using sed to remove certain line in a text file based on a match with 2 variables from input. Here is how it looks like in file
Philip S:Odds:45:343
Mike Junior:Odds:3:56
I prompt for 2 inputs in variable form which is compared to the first 2 fields of the above text (: seperated). So say i enter Philip S and Odds then it should delete the entire first line.
I've been trying to understand pthread in C a little better. So I made a simple program that takes in a string from the command line and creates a thread to print the string. I've looked online and copied the basic concepts but there are something things I'm confused about. The programs works just fine, but I have questions. Here's what I have so far.
[Code]....
One thing I'd like to know is why the 3rd argument in the pthread_create function which is my SendMessage function needs to be typecasted to a void pointer and then send the address of the function. Also as for the 4th argument, I would see typecasting to void pointer in some of the pthread examples I saw online, but in my case I'm passing a char pointer, would this be correct? In which case would I ever want to pass a void pointer?
Do I need a pthread_exit(NULL) in my main and in the SendMessage function? If so, why? I added the sleep() function so that I could let the pthread_exit function in my SendMessage function execute first. I simply saw that the online examples on pthread had pthread_exit() in both locations.