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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votes
1answer
26 views

Perl/awk/bash: multiply and sum values putting values inline instead original text [on hold]

I have a text like this: ;--------------------------------------- JOURNEY_ARRAY_01 .BYTE <JOURNEY_00 .BYTE <JOURNEY_01 ;--------------------------------------- JOURNEY_ARRAY_03 ...
1
vote
3answers
55 views

multiline editing using perl or any other tool

I'm editing my .uncrustify.cfg file to make it more readable. I just want to reformat like this: Two lines in: # Add or remove between the parens in the function type: 'void (*x)(...)' ...
1
vote
2answers
93 views

Group words based on the value of the first column

I want to group all the file contents based on the value of first column. It would be better if the output is in sorted form. Input: 1 foo 2 bar 1 foobar 2 barbar 3 apple 4 banana 3 mango 5 orange ...
0
votes
0answers
21 views

Row merger due to redunt splits of a single row in Unix

Thanks for your explanation and time Avinash. The code is working as expected but my depiction of problem truned much simpler than the actual problem. Problem: I have a file which has ~5Million of ...
5
votes
1answer
2k views

Replacing multiple lines in sed or awk [on hold]

I'm trying to use sed or awk to replace 5 lines in a smb file but I just don't have any idea how to deal with the newlines.
1
vote
4answers
112 views

Sed/awk/perl: reversing order of comma separated values, preserving other text

I have this text: LABEL1 .BYTE 01, 02, 03, 04, 05 .BYTE 01, 02, 03 I need to reverse only comma separated values order: LABEL1 .BYTE 05, 04, 03, 02, 01 .BYTE 03, 02, 01 I need ...
0
votes
1answer
22 views

OSD notification for Irssi

I want to get a notification each time I get a /query message or get highlighted in a channel. this notification should be in the form of bubble OSD (on screen Display). If OSD isn't possible for ...
2
votes
1answer
38 views

Replace new line character between two strings

I have problem and see your answer in one of questions suiting with one exception Here is what i am trying to achieve \n (new line character) has to be replaced with blank when \n is between two \" ...
1
vote
1answer
35 views

count matches and mismatches group by

Please help with a shell script of the following. I need count number of consistent variables in each lane (col1) across samples (col2). For example, since all the values (col4) of lane1 variable 1 ...
2
votes
2answers
37 views

Sed/awk/perl: modify text preserving parts and align to a column

I have a text like this: A1JOURNEY0TO1 .BYTE 00, 00, 00 A2JOURNEY0TO2 .BYTE 00, 01, 00 A3JOURNEY1TO0 .BYTE 00, 01, 01 I need to have: JOURNEY_01 ; 00 TO ...
1
vote
1answer
51 views

Perl plugins don't work on my rxvt-unicode! [closed]

I wanted to add some features to my urxvt so I changed my .Xresources file. for the global effect of plugins I copied them all to /usr/lib/urxvt/perl. but still no multi tab, clickable link or ...
3
votes
2answers
88 views

How to write this pseudocode where condition

This question is extension of this question about listing questions of directories. I get a problem that I need to understand the original section of the text. Current output where you see the ...
-1
votes
1answer
38 views

How to remove only 0-9 character long numbers from a file?

How can we remove only the numbers that are 0,1,2,3,4,5,6,7,8,9 character long from a file? I mean the lines that are matching this pattern. Example for removable lines: cat input.txt 1 123423113 ...
0
votes
1answer
56 views

Cut a specific part of a column from a csv file [closed]

I have to process a csv containing about 15 columns one of which contains a particular timestamp that includes milliseconds. When I go to insert this csv into a DB, I get an error because of this ...
1
vote
0answers
22 views

How can I send email without using uuencode and mute?

Is it possible to send attachment from unix/AiX without using uuencode and MUTE command? We can write a Perl script which will send email properly but without attachment, can I get the perl code ...
1
vote
1answer
41 views

How to write this replacement with condition

I want to replace now within my working directories the word -> with $\to$ if the word is not within verbatim environment. Pseudocode Replace all entriens of -> with $\to$ everywhere else but not ...
1
vote
1answer
45 views

Regex works in shell but not through Perl script

I'm having trouble executing a Perl script through the Unix shell using Perl's system command. I've had more complex regex commands I had to adjust accordingly to convert from Unix to Perl, and ...
0
votes
2answers
38 views

To match only innermost environment by Regex

I want to match the innermost environment of begin{question} and its corresponding end{question}. Example data \section{Takayasu arteritis} \begin{question} {You get a patient. What do you notice ...
1
vote
1answer
416 views

“Requires: perl(:MODULE_COMPAT_5.8.8)”

I use CentOS 6.5 for my server with below repository: IUS epel ces-standard-* base/upgrade/extras When I tried to update today (it's been a while I haven't updated this server), I got the ...
3
votes
2answers
3k views

How to convert a .txt subtitle file to .srt format?

I have a subtitle file, it looks like this: 00:00:44:" Myślę, więc jestem".|Kartezjusz, 1596-1650 00:01:01:Trzynaste Pietro 00:01:06:Podobno niewiedza uszczęśliwia. 00:01:10:Po raz pierwszy w ...
0
votes
3answers
2k views

compare two files based on a column and print it

I have two big files of 400,000 lines. I want to compare the column 1 of the second file with column 1 of first file recursively. If they match I would like to print the whole line. It is a sorted ...
2
votes
1answer
91 views

grep search expression and rename file

I have readable pdf files that all contain the string VAX followed by eight numbers, like VAX00002885. Now I want to find that expression and rename the corresponding pdf to VAX00002885.pdf (in this ...
-2
votes
1answer
635 views

convert CSV to XLS file on linux [closed]

The following Perl script can convert CSV file to XLS file the problem is that I need to install on customer Linux machine many Perl modules in order to run this Perl script , and actually I cant ...
1
vote
1answer
29 views

Perl one-liner for replacing values greater than a threshhold

I have a text file which contains 7 columns of floating point values (). I would like to use perl one-liner and find the values which are greater than a threshold in the 7th column. Then, I want to ...
1
vote
2answers
638 views

fixing cpan by resetting it

So I ran into a simple little problem. This is a somewhat rookie mistake. I wasn't connected to the internet and started cpan. It started to configure for the first time and then when I realised a ...
1
vote
5answers
44 views

df -k + how to match the root volume line

please advise how to match the "/" volume from df -k command? I tried the following: [root@machine /]# df -k | grep "/" /dev/vx/dsk/bootdg/rootvol 130926685 71378710 58238709 56% / /devices ...
2
votes
2answers
214 views

echo test | stty -echo -> stty: standard input: Inappropriate ioctl for device

I was playing with a perl script that takes user input with the following: system( qw( stty -echo ) ); $? == 0 or die "Error unable to disable character printing.\n"; print "$prompt: "; my $input = ...
2
votes
1answer
50 views

Why does mysql server packages have perl dependencies in linux distros?

I'm trying to clean out some unneeded packages from one of my gentoo boxes with emerge --depclean, and I thought I had a few perl modules installed that none of my wanted packages should require. So, ...
-1
votes
1answer
35 views

search for a character in one column and replace value in another column of matched records

I have a requirement to find value 2 in column 4 and wherever it matches replace 6th column with '-'sign in the beginning suppose if i have csv file - file1 like this abc,0,def,1234,ijk ...
0
votes
1answer
57 views

Uuencode displaying attachment content in email body

I am using uuencode with mailx to attach a zip file. In following code, the if block works perfectly and I get Deletions.zip as an attachment in the email. But, whenever the else block is executed I ...
0
votes
3answers
73 views

Combinatorics of letters and words - preferably bash, will accept perl or other [closed]

I am trying to write a shell script to generate all possible words in the English language less than 20 characters. I doubt there is any truly efficient way to do this other than to brute force some ...
0
votes
2answers
1k views

Failed dependencies trying to install package 'libxml2'

I am trying to install libxml2, but my system complains about dependencies. The dependent packages exist on system. The ultimate goal is to install xml_grep2, I have been trying various methods ...
0
votes
0answers
35 views

Folding in vimrc does not work as expected

I added these to my vimrc: set foldenable set foldmethod=syntax set foldlevelstart=1 let javaScript_fold=1 " JavaScript let perl_fold=1 " Perl let php_folding=1 ...
0
votes
3answers
45 views

How to Print certain Fields if a condition is met

I have a big Input file as shown below. If "PRIMER_LEFT_NUM_RETURNED" is not equal to 0 then print the corresponding SEQUENCE_ID, SEQUENCE_TEMPLATE,PRIMER_LEFT_NUM_RETURNED, PRIMER_RIGHT_NUM_RETURNED, ...
1
vote
1answer
74 views

calling script from perl/python/ruby and retrieving output [closed]

I inherited a tcsh "master" script that works and extracts lines from files with data with using 'zcat' piped to 'grep' and some other commands/scripts. The extracted lines contain numbers . It is ...
7
votes
1answer
360 views

Is there a way to make perl -i not clobber symlinks?

A friend of mine points out that if you do: perl -pi.bak -e 's/foo/bar/' somefile when "somefile" is actually a symlink, perl does just what the docs say it will do: It does this by renaming ...
3
votes
3answers
295 views

Replacing string in all files found by grep. Can't get it to work

I'm trying to do what title says. So I find all needed files with grep: grep --include=\*.{php,ini,conf,sh} -ril -P "'([\d\w\-\_\.]+)(@domain.com)'" '/var/www_data/somepath/' Now I assume it's ...
3
votes
4answers
51 views

Need to remove - (Minus) sign at the end in number from many columns and insert it on columns removed

I have a huge csv file which has - (Minus) sign at the end of numbers. Now I need to move these - minus signs to begin of the numbers, i.e I need to remove the last character if it has '-' sign and ...
15
votes
1answer
8k views

How can I replace a string in a file(s)?

Replacing strings in files based on certain search criteria is a very common task. How can I replace string foo with bar in all files in the current directory? do the same recursively for sub ...
-1
votes
2answers
59 views

How to remove a newline character in a particular line through perl?

I want to remove a newline character in a particular line through perl one-liner command. Input: 1407233497,1407233514,bar 1407233498,1407233515,foo mingstats&fmt=n 1407233499,1407233516,foobar ...
1
vote
3answers
36 views

Concatenate Sequences under a Heading

I have a file like File1. With a heading for example ">Contig1" and I want to concatenate all the sequences under the respective heading. File1: >Contig1 ACCCCATACATCCAAA NNNNNNNNNNCATACA ...
3
votes
1answer
50 views

Handling dynamically changing column positions and splitting file

I have a unique problem. I have a file with following columns PersonId, AB1, AB2, AB3, DG1_B1,DG1_B2,DG2 1,0,1,0,3,5,7 2,0,3,1,3,7,4 I want to split this and create multiple files based on the ...
4
votes
5answers
6k views

extract the 4th column from a csv file using unix command

I have a csv file formatted as below. "col1","col2","col3","col4" "1","text1","<p>big html text</p> ","4th column" "2","text2","<p>big2 html2 text2</p> ...
0
votes
1answer
32 views

Kill a Process for a User [closed]

chomp $choice; if ($choice == 5) { print "**********************************\n"; print " Enter the User Name\n"; $user_name = <STDN>; sub kill_processes { $user_name = ...
2
votes
3answers
34 views

Delete until given character starting from given string

root@server:~/foo$ cat INPUT.txt limit. Current u'^'ZO limit. Current usage'^'FR limit. Current us'^'AS limit. Current usage 95 %.'^'FR limit. Cur'^'AEW root@server:~/foo$ sed ...
0
votes
1answer
59 views

Bandwidth speed test with nginx

I have server with nginx-1.4.1. I want to test bandwidth between my desktop and server. Incoming speed I can test by simple download file with size 10M from server and count time what I need to ...
0
votes
0answers
89 views

Unable to install Crypt::SSLeay perl module on RHEL 5.7 (x86_64)

Here is the scenario, actually my RHEL 5.7 (x64_86) server don't have internet connection. but I want to install Crypt::SSLeay perl module on that server. So I downloaded it from CPAN & then ...
4
votes
1answer
41 views

grep variable-length optional text

I would like to search for edge-anchored text that has a block of preceding optional text, any amount of which can be included in the match. For instance, supposing I am trying to find ^xyz but would ...
0
votes
2answers
235 views

how to remove all double quotes from csv except specific field

I want to remove all double quotes from my csv but not the fourth field (because the four fields represent PATH of file) Please advice how to implement this by sed or awk or perl one liner , etc ...
5
votes
2answers
285 views

How is the inplace modification of a file being done?

What does the "inplace" modification of a file e.g. via sed -i or perl -i mean? My question is about how this inplace modification is done. Is the file copied the modification is done in the copy and ...