Perl is a high-level, general-purpose, interpreted, dynamic programming language. It was originally developed by Larry Wall as a general-purpose Unix scripting language to make report processing easier, over a period with support from open source community, it has evolved and matured to be used for ...

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2
votes
3answers
233 views

How to run multiple scripts in parallel

I have one bash script which calls the same perl scrips in a serial way. The bash script is used to collect the overall results, while the perl script collects the results of my simulations for the ...
3
votes
2answers
454 views

remove ^M from solaris by perl one liner on the same file

usually in order to remove the ^M from file we do dos2unix test.txt test.txt tr -d '\r' < old.file > new.file but this approach insist to create new file if we do not want to create another ...
2
votes
3answers
327 views

how to delete line from the XML file

how to delete only the line from xml file ( with sed/awk or perl one liner line ) that start with: <units> and ended with </Networks> as the follwoing <units><unit ip= ...
1
vote
1answer
212 views

smd5 - generate by unix tool or perl

I have problem on Unix, have to create a lot of passwords in smd5 but don't know how to generate smd5 passwords using some unix tool or perl in a form: {smd5}DoZgZ.OE$vSg4ZH7Bpy0BCdXNzBj001 I have ...
1
vote
1answer
95 views

How to pass a path to a file through a call to perl from bash?

This is a more advanced version of a previous question (How to pass arguments to perl when trying to change a line?) I made. This time I am trying to pass a path, but evertything seems that the the ...
0
votes
2answers
82 views

How to pass arguments to perl when trying to change a line?

I am using the approach suggested in http://askubuntu.com/questions/434051/how-to-replace-a-string-on-the-5th-line-of-multiple-text-files to modify the first line of an archive. Let's suppose the ...
4
votes
1answer
40 views

ack.pl tool and ack.pl flags

I am using the ack.pl tool in order to search string or IP’s in files The official site of ack.pl is - http://beyondgrep.com/documentation/ Example of ack.pl CLI ( want to find the string ...
0
votes
5answers
181 views

To remove \n but not \n\n

Data 23. Lorem A) he B) ha C) hu c 2. Ipsun yes right to write something here? A) Ok B) No C) yes b 292. Ipsun A) Apex B) hello b 289. He A) hu B) Ha C) He The right answer is: 1) Ab 2) Abc 3) ...
1
vote
1answer
43 views

How do I synchronize 2 xml files?

I have 2 xml files named 1k.xml and 1n.xml. The file 1k.xml contains some additional elements and data which are not there in 1n.xml. I want to copy whatever is absent in 1n.xml to it, so that both ...
0
votes
1answer
107 views

Parse header in a file and based on the header replace a value in the file

I have a problem I need help with. I'm not very experienced with awk, but it seems to be a good tool for this job. I have the following file Field1|Field2|Field3|Field4|Field5 a|b|c|d|e 1|2|3|4|5 ...
2
votes
1answer
88 views

How to print incremental count of occurrences of unique values in column 1

I'm trying to come up with an solution to this problem, I need to incrementally count and then print the counts of the unique values in column 1 of a tab delimited text file. Here is an example: ...
2
votes
1answer
87 views

nix package manager: perl warning: Setting locale failed

Whenever I run a command for the nix package manager (e.g. nix-channel --update) I get the following warning: perl: warning: Setting locale failed. perl: warning: Please check that your locale ...
5
votes
2answers
200 views

Transpose a file, and replace missing values

I have Readings for Names, from Machines and sometimes these readings are replicated. Where a reading was not found, it is left as blank. Name Instrument Rep R1 R2 R3 N1 I1 1 1 2 3 N2 I1 1 1 3 4 ...
1
vote
1answer
24 views

Rename command with non-existing target directory

I'm trying to group files automatically into subdirectories using a command like this: $ rename 's/(.)(.)(.+)/$1\/$2\/$1$2$3/' *.* A dry run with the -n parameter shows me what I want: test.jpg ...
0
votes
1answer
30 views

how to change several piece of html code

I have several chunks of html code ,see below, in a html page that I need to change Assurez-vous de bien recevoir tous nos messages en ajoutant bebeco@concretisezvosprojets.com à votre carnet ...
2
votes
2answers
54 views

How do I extract the content of quoted strings from a file

have a file which looks like this: anm="12S123S" family="" type="Std" product="" name="nand" allow="yes" anm="12321 S=" family="" type="Std" product="" name="dan" need="No" anm="SWED" family="" ...
1
vote
4answers
133 views

How to insert a variable in a variable in a random place?

Q: How can I insert variable $b to a truly random place in variable $a? Example INPUT variable content: $ echo $a árvíztűrő tükörfúrógép $ echo $b ZZ OUTPUT $ ./somemagicscript.sh árvíztűrő ...
4
votes
2answers
235 views

How to “grep” for line length in a given range?

I need to get only the lines from a textfile (a wordlist, separated with newline) that has a length range of minimum or equal than 3 characters, but not longer or equal then 10. Example: INPUT: ...
2
votes
1answer
63 views

how can I add an extra character after a word search [closed]

I have the following field names demelog voyapro naisjdf naismc decoide decoccm travide travccm equiccm mariccm Below is a sample of my file. There are more columns before the first fck=83... ...
4
votes
3answers
291 views

Can tr commands be chained to avoid multiple tr processes in a pipeline?

I have a bunch of txt files, I'd like to output them lower-cased, only alphabetic and one word-per line, I can do it with several tr commands in a pipeline like this: tr -d '[:punct:]' ...
2
votes
4answers
106 views

How to highlight given string in given place?

How can we modify this: <a href="http://foo.bar1">asfdlksafbar1qsasadf</a><br> <a href="http://foo.bar2">svasfbar2saldkfj</a><br> <a ...
0
votes
2answers
201 views

Help to read a flat file into unix and output to simplified csv like format for import into excel

I have a text file that has data written to it in the format below, its thousands of rows. The new record always begins with WHATEVER.RDNDISPLAY or WHATEVER.DSPLY_NAME. The name of the record is ...
2
votes
3answers
367 views

Replace multiline string in files

I have a number of files I want to update by replacing one multi-line string with another multi-line string. Something along the lines of: * Some text, * something else * another thing And I want ...
0
votes
1answer
182 views

lwp-request Fails After Upgrade to Centos 7

I have a bash script that runs well on centos 6, which has an lwp-request in it. I upgraded my system to Centos 7, and the request fails to run: # lwp-request -E https://localhost/admin/startup GET ...
1
vote
1answer
76 views

How can I use regex to extract the text following two conditions into a variable?

I'd like to extract a setting for a given host in the ssh_config file and put it into a variable. Host mysite HostName 123.1.1.1 User myuser Port 13245 GSSAPIAuthentication no ...
2
votes
1answer
58 views

Make a rpm package from the cpan compatible tree?

I always make my perl module following the CPAN-complient tree. I would like to use this tree to create a rpm file I could install on a hundreth servers. Is it possible to make a rpm package with ...
0
votes
2answers
51 views

occurance of a string in multiple file

I have two files 1. input.txt 2. keyword.txt input.txt has contents like .src_ref 0 "call.s" 24 first 0x000000 0x5a80 0x0060 BRA.l 0x60 .src_ref 0 "call.s" 30 first 0x000002 ...
0
votes
1answer
121 views

What “bad list v: No such file or directory at -/usr/libdata/per15/OpenBSD/Pkg_Add.pm line 1115” means?

I recently installed OpenBSD on an old laptop from 2005 and I am trying to install nano and then xfce4 and then a few other programs, but every time I try to use pkg_add, I get the message: Fatal ...
1
vote
2answers
168 views

Ack regex on filenames

According to this thread: Q: My understanding is that ack uses Perl-derivative regular expressions, is that correct? A: Yes. In fact, ack is written in Perl and just forwards the expressions ...
0
votes
1answer
59 views

amavisd: Unrecognized character \xBB;

I have a problem to start the amavisd. When I try to start with /etc/init.d/amavis start I get the following error: Starting amavisd: Problem in Amavis::DKIM code: Unrecognized character \xBB; marked ...
3
votes
1answer
47 views

Filter out inconsistent data blocks

I would like to filter out rows that has inconsistent geno values in line-part blocks. In case of duplicate consistent values , I would just keep the first row. As example, 'gf345 part1' has more ...
2
votes
1answer
109 views

How to upgrade File::Path on my Mac OS X as a non-root user

My mac machine is quite old (Mac OS X 10.6.8) and I have a question on how to upgrade a perl module File::Path. I mostly compile my LaTeX document using latexmk which is basically a perl script. It ...
1
vote
3answers
395 views

Cannot run Perl code as CGI script

I am using Arch Linux with httpd web server and webpage works ok. I had to add "Reboot" button on webpage and now I want to run a Perl CGI script, reboot.cgi, which so far only contains "Hello world" ...
0
votes
0answers
95 views

error for installing Math module CDF in perl

I am trying to install Math::CDF in perl I tried both cpan -i Math::CDP and install from downloaded files both end up in error after enter make install: Running make install make[1]: Nothing to be ...
-1
votes
1answer
169 views

perl env path in .bashrc

I am running Manjaro Linux and perl 5.20.1, which came pre-installed. I have started learning perl and need to get it in my path in ~/.bashrc. (Manjaro uses .bashrc and not .bash_profile). I should ...
0
votes
0answers
27 views

capture tmux screen and process with shell command

is there a way to capture text currently on the screen of a tmux session and pipe it into a shell command then display the output? I was hoping to use something like this with Oracles sqlplus to do ...
3
votes
4answers
201 views

pattern match and capturing in unix

I have a file like this: A1-1915435_1_MIMAT0000069_MirBase_miR-16_microRNA_1_22-A1-1915435_1_ENSG00000206737_ENST00000384010_U1_snRNA_73_115 ...
1
vote
1answer
59 views

file name as argument and sort in descending way in perl?

I have this perl script #!/usr/bin/perl use strict; open my $df, '<', 'file.txt' or die "open: $!\n"; my %h; while (<$df>) { $h{$_}++ for split /\s+/; END{ for (keys %h){ ...
2
votes
1answer
262 views

How to count the number of occurrences of a number larger than x, from every column?

I'm trying to figure out how to count the number of occurrences of values that are greater than some number (i.e. 0.1) in each column and then print that value out for each column. Here would be some ...
1
vote
1answer
116 views

Alias for perl script

So far while surfing web I've discovered nice addition to my gpg password generator and I've decided to adjust my alias with these commands. Here is the code gpg --gen-random 1 20 | perl -ne'print ...
1
vote
1answer
35 views

Input data to mech-dump via STDIN?

While a: mech-dump foo.html perfectly works, a: FILE="$(cat foo.html)" echo "$FILE" | mech-dump Must specify a URL or file to check. See --help for details. doesn't. How can I put the input ...
0
votes
0answers
59 views

Unable to access bugzilla url

Actually I installed bugzilla in one vm. It is using mod_perl and Email configured. Everything working fine. In browser i access the url http://MY_server_IP/bugzilla working fine. In another vm, I ...
4
votes
1answer
76 views

Insert missing data within blocks

I`m a biologist and I am trying to solve this problem, please guide me on where to start. I do not know which forum to post this in, please let me know if this place is not appropriate. I have blocks ...
0
votes
0answers
64 views

Can't locate Cairo.pm in @INC

I am running prinseq for trimming my data but got this error: Can't locate Cairo.pm in @INC (@INC contains: /home/A/software/vcftools_0.1.11/perl How do I install this?
1
vote
7answers
197 views

repeat a line, splitting one field

I have a tab delimited file in which in every line I have this: K00001;K00004;K00008 0 0 34 0 0 0 0 0 0 0 0 0 0 0 0 0 36 0 0 52 0 0 0 6 0 I would ...
1
vote
1answer
245 views

Assp won't start

I tried to install ASSP (Anti-Spam SMTP Proxy Server),but when I try to start it I get the following: $ perl assp.pl Perl version 5.012003 (5.12.3) is at least recommended to run ASSP 2.4.3 (14313) ...
2
votes
1answer
183 views

Perl fails to set locale on AIX 7.1

After setting user language to Chinese with GB18030 encoding in SMIT, the following env variable were added to the user's .profile: LANG=Zh_CN LC_MESSAGE=%l.%c ...
16
votes
2answers
512 views

Security implications of running perl -ne '…' *

Apparently, running: perl -n -e 'some perl code' * Or find . ... -exec perl -n -e '...' {} + (same with -p instead of -n) Or perl -e 'some code using <>' * often found in one-liners ...
3
votes
2answers
237 views

Coloring tail output with perl

tail -f logfile.log | perl -pe 's/.*foo*/\e[1;41m$&\e[0m/g' will color all the lines containing the pattern "foo" in the logfile.log file. How can I make use of this in order to highlight ...
1
vote
1answer
715 views

Missing shell module in perl 5.18

I'm running Perl script under SLES 12 which has Perl 5.18 installed. When trying to run my Perl script I get an error: Can't locate Shell.pm in @INC (you may need to install the Shell module) (@INC ...