Hey all,
So I know you can easily find and replace words and strings in text files, but is there an easy way to find and replace just a sub-portion of text in the file name. For example, in a directory I have tons of file names that start with F00001-0708, and I want to change all the files to... (2 Replies)
Hi.
I would like to have experts help on below action.
I have text files in which page nubmers exists in form like
PAGE : 1
PAGE : 2
PAGE : 3 and so on there is other text too. I would like to know is it possible to check the last occurance of Page... (6 Replies)
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)
Hello everyone. I am new to shell scripting and i am required to create a shell script, the purpose of which i will explain below.
I am on a solaris server btw.
Before delving into the requirements, i will give youse an overview of what is currently in place and its purpose.
... (2 Replies)
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)
Not quite a unix question but problem in a perl command. Taking a chance if someone knows about the error
cat 1
a b c d
perl -p -e 's/a/b/g' 1
b b c d
What is the problem here??
perl -p -i -e 's/a/b/g' 1
Can't remove 1: Text file busy, skipping file. (2 Replies)
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)
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)
In the below bash I am trying to rename eachof the 3 text files in /home/cmccabe/Desktop/percent by matching the numerical portion of each file to lines 3,4, or 5 in /home/cmccabe/Desktop/analysis.txt. There will always be a match between the files. When a match is found each text file in... (2 Replies)
Hello Gurus,
I have a filesystem like below :
/u03/oracle/EBSDEV/fs1/EBSapps/appl
I want to get only the portion of the above text like below...
/u03/oracle/EBSDEV
Can you please advice on this?
Thanks-
P (5 Replies)
Discussion started by: pokhraj_d
5 Replies
LEARN ABOUT SUSE
io::atomicfile
IO::AtomicFile(3) User Contributed Perl Documentation IO::AtomicFile(3)NAME
IO::AtomicFile - write a file which is updated atomically
SYNOPSIS
use IO::AtomicFile;
### Write a temp file, and have it install itself when closed:
my $FH = IO::AtomicFile->open("bar.dat", "w");
print $FH "Hello!
";
$FH->close || die "couldn't install atomic file: $!";
### Write a temp file, but delete it before it gets installed:
my $FH = IO::AtomicFile->open("bar.dat", "w");
print $FH "Hello!
";
$FH->delete;
### Write a temp file, but neither install it nor delete it:
my $FH = IO::AtomicFile->open("bar.dat", "w");
print $FH "Hello!
";
$FH->detach;
DESCRIPTION
This module is intended for people who need to update files reliably in the face of unexpected program termination.
For example, you generally don't want to be halfway in the middle of writing /etc/passwd and have your program terminate! Even the act of
writing a single scalar to a filehandle is not atomic.
But this module gives you true atomic updates, via rename(). When you open a file /foo/bar.dat via this module, you are actually opening a
temporary file /foo/bar.dat..TMP, and writing your output there. The act of closing this file (either explicitly via close(), or
implicitly via the destruction of the object) will cause rename() to be called... therefore, from the point of view of the outside world,
the file's contents are updated in a single time quantum.
To ensure that problems do not go undetected, the "close" method done by the destructor will raise a fatal exception if the rename() fails.
The explicit close() just returns undef.
You can also decide at any point to trash the file you've been building.
AUTHOR
Primary Maintainer
David F. Skoll (dfs@roaringpenguin.com).
Original Author
Eryq (eryq@zeegee.com). President, ZeeGee Software Inc (http://www.zeegee.com).
REVISION
$Revision: 1.2 $
perl v5.12.1 2005-02-10 IO::AtomicFile(3)