I would like to arrange /sort filenames ending with suffix like ".00XXXX". where X is a digit. However the order of arrangement is in a text file and is 'harpharzard'. e.g the text file may be like
002345
009807
001145
I wanted to avoid doing this using sql and exporting the text file back to... (4 Replies)
I am trying to sort the output in decreasing order of the process ID while using the ps command. I am having trouble doing this using the --sort part of ps.
Also I was wondering if anyone knows what the "S" stands for under the process's status code? (3 Replies)
I have a directory of backup files.
named like this:
ldap.data.04-06-2012.tar
ldap.data.03-06-2012.tar
ldap.data.02-06-2012.tar
ldap.data.01-06-2012.tar
ldap.data.31-05-2012.tar
ldap.data.30-05-2012.tar
ldap.data.29-05-2012.tar
ldap.data.28-05-2012.tar
ldap.data.27-05-2012.tar... (6 Replies)
Hi friends,
I am using below script to gzip files after naming them in a particular order.
but I intend to name them in numerical order as per their timings(earlier updated fle with a smaller numeric extension than later updated),but this script is not working as planned.
please help with... (7 Replies)
Hi,
I have this single file with a number of sequence inside it of format
>string1
data
>string100
data
>string10
.....
>string5
...
>string67
......
the dots represent data.
I wanted to get the sequences arranged in ascending order like
>string1
data
>string5 (5 Replies)
Hello,
I have a large database of words and would like them sorted in reverse order i.e. from the end up.
An example will make this clear:
I have tried to write a program in Perl which basically takes the string from the end and tries to sort from that end but it does not seem... (5 Replies)
I am trying to sort a log file in chronological order to identify which ones did not process and still have an old (probably yesterday's) date. This is a sample of the file:flatf 010140 flatf Thu May 10 22:22:11 CST 2018 flats finished
flatf 010142 flatf Thu May 10 22:31:25 CST 2018 flats... (4 Replies)
Discussion started by: wbport
4 Replies
LEARN ABOUT DEBIAN
io::atomicfile
IO::AtomicFile(3pm) User Contributed Perl Documentation IO::AtomicFile(3pm)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 v5.12.4 2011-09-18 IO::AtomicFile(3pm)