Perl one liner to replace text


 
Thread Tools Search this Thread
Top Forums UNIX for Dummies Questions & Answers Perl one liner to replace text
# 1  
Old 06-27-2012
Perl one liner to replace text

Not quite a unix question but problem in a perl command. Taking a chance if someone knows about the error

Code:
cat 1
a b c d
perl -p -e 's/a/b/g' 1
b b c d

What is the problem here??

Code:
perl -p -i -e 's/a/b/g' 1
Can't remove 1: Text file busy, skipping file.

# 2  
Old 06-27-2012
-i means "in place" But. It requires that the original file be removed and 1 is stdout to perl.
# 3  
Old 06-27-2012
Thanks for replying Jim, prompted by your explanation, I found that the file under consideration is owned by root. A 'user' owned files can be changed by the same command.

I tried
Code:
sudo chown user 1

no error, but owner is still root. This is very irritating I have 100s of such files to work with.

---------- Post updated at 04:36 PM ---------- Previous update was at 04:04 PM ----------

Thanks I got it sorted, problem was ownership on a mounted directory.
 
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Perl: batch replace a portion of text in files

Hi all, What I would like to achieve is to batch change the code below in every pdf in a given directory (each pdf is uncompressed so that can be easily edited). An example of the javascript code: if (this.hostContainer) { try { this.hostContainer.postMessage(pp_216', 15259]);... (3 Replies)
Discussion started by: menteith
3 Replies

2. Shell Programming and Scripting

PERL one liner

hi, I am using PERL one liner for oracle database connection as : $PERL -e "use DBI; DBI->connect(qw(DBI:Oracle:SID user passwd));" is there a way to append select statement to this connection ? i.e. DB connection and select stmt in one line ? how to do sysdba connection using one lines... (1 Reply)
Discussion started by: talashil
1 Replies

3. UNIX for Dummies Questions & Answers

What awk 1-liner will replace value in 1stField of a delimited file with the value of '5' ?

Hi, I am a newbie to awk. Here is my problem. Looking for an awk 1-liner to solve it: My Computing Environment: - Solaris10 - I prefer to use csh or sh shells 1. Lets say my input file is File1.dat (delimter = | ) and looks as follows: (File1.dat) ... (1 Reply)
Discussion started by: andy b
1 Replies

4. Shell Programming and Scripting

Shell or perl script to replace XML text in bulk

Hi, I am looking for assistance over shell or perl (without XML twig module) which replace string in XML file under particular branch..example of code file sample.. Exact requirment : Replace "Su saldo es" in below file with "Your balance" but only in XML branch of Text id=98 and Text Id=12... (7 Replies)
Discussion started by: Ashu_099
7 Replies

5. Shell Programming and Scripting

perl script to replace the text in the original file

Hi Folks, I have an html file which contains the below line in the body tagI am trying the replace hello with Hello Giridhar programatically. <body> <P><STRONG><FONT face="comic sans ms,cursive,sans-serif"><EM>Hello</EM></FONT></STRONG></P> </body> I have written the below code to... (3 Replies)
Discussion started by: giridhar276
3 Replies

6. Shell Programming and Scripting

replace awk with a perl one liner (REGEXP and FS)

hello, I want to replace awk with a perl one liner in unix. i use in awk REGEX and FS ( field separator) because awk syntaxes in different unix os versions have not the same behaviour. Awk, Nawk and GNU Awk Cheat Sheet - good coders code, great reuse i have a file named "file" and want... (5 Replies)
Discussion started by: bora99
5 Replies

7. Shell Programming and Scripting

perl : replace multiline text between two marker points

Hi there I just wondered if someone could give me some perl advice I have a bunch of text files used for a wiki that have common headings such as ---++ Title blah ---++ Summary blah ---++ Details Here is the multiline block of text I wish to (6 Replies)
Discussion started by: rethink
6 Replies

8. Shell Programming and Scripting

Search & Replace regex Perl one liner to AWK one liner

Thanks for giving your time and effort to answer questions and helping newbies like me understand awk. I have a huge file, millions of lines, so perl takes quite a bit of time, I'd like to convert these perl one liners to awk. Basically I'd like all lines with ISA sandwiched between... (9 Replies)
Discussion started by: verge
9 Replies

9. Shell Programming and Scripting

awk multiple-line search and replace one-liner

Hi I am trying to search and replace a multi line pattern in a php file using awk. The pattern starts with <div id="navbar"> and ends with </div> and spans over an unknown number of lines. I need the command to be a one liner. I use the "record separator" like this : awk -v... (8 Replies)
Discussion started by: louisJ
8 Replies

10. Shell Programming and Scripting

Replace/Remove not specific text in perl

Hello, Consider that i have many files that have the below format: file1 900 7777 1000 5 6 23 nnnnnnnnnnnnnnnnnn 1100 kkkkkkk file2 900 1989 1000 5 3 10 kkkdfdfdffd 1100 kkkkkkk What i would like to do is on every file to search the line that starts with... (4 Replies)
Discussion started by: chriss_58
4 Replies
Login or Register to Ask a Question