Hello and thanks a lot for your immediate reply.
It was my mistake to use "|" as separator because the actual separator is " " (single space) and files are .dat
Guess the code that does the work and has a file as an output is:
Right?
---------- Post updated at 01:49 PM ---------- Previous update was at 01:43 PM ----------
Just tried it. It really works, apart from one thing: This code puts one file at the end of the other.
Example:
file1-00.00
x y temp
1 1 10
and file2-00.10
x y temp
1 1 12
Become file output
x y temp
file1-00.00
1 1 10
file2-00.10
1 1 12
I would prefer the output to be like
x y temp-file1-00.00 temp-file2-00.10 temp-fileXX-23.50
1 1 10 12 zz
Hi,
I have file1.txt and file2.txt and would like to create file3.txt based on one column in UNIX
Eg:
file1.txt
17328756,0000786623.pdf,0000786623
20115537,0000793892.pdf,0000793892
file2.txt
12521_74_4.zip,0000786623.pdf
12521_15_5.zip,0000793892.pdf
Desired Output
... (5 Replies)
I have 100 data files labelled 250.1.txt through 250.100.txt. The second column of the data files partially match (there is about %90 overlap). Each data file has 4 columns.
I want the merge all these text files by the matching values in the second column. In the output, the first column should... (1 Reply)
Hi
I have multiple files each with two columns and I need to combine all those file into a tab delimited file. (multiple entry with same name separated by a comma)
The content of the files are as follows:
---
file1.txt:
name var1
aaa xx
aaa gg
bbb yy
ddd zz
---
file2.txt
... (8 Replies)
Hi,
Can anyone suggest quick way to get desired output?
Sample input file content:
A 12 9
A -0.3 2.3
B 1.0 -4
C 34 1000
C -111 900
C 99 0.09
Output required:
A 12 9 -0.3 2.3
B 1.0 -4
C 34 1000 -111 900 99 0.09
Thanks (3 Replies)
Hi all,
I'm looking for a way to merge multiple columns (from one file) into a single column in an output file.
The file I have looks somewhat like this:
@HWI-ST212 1:N:0 AGTCCTACCGGGAGT + @@@DDDDDHHHHHII
@HWI-ST212 1:N:0 CGTTTAAAAATTTCT + @;@B;DDDDH?:F;F... (4 Replies)
Hi All,
I am trying to merge all the text files into one file using below snippet
cat /home/Temp/Test/Log/*.txt >> all.txt
But it seems it is not working.
I have multiple files like Output_ServerName1.txt, Output_ServreName2.txt
I want to merge each file into one single file and... (6 Replies)
Hi All,
I have 4 files in below format. I took them as an example.
File 1: Cut from position 1-4 then 6-7 then 8-14 then rest left and make them as columns in one new file. Inserting character H to the initial of all line like HCTOT.
CTOT 456787897 Low fever
CTOR 556712345 High fever... (2 Replies)
Hi ALL,
I have two file. I need to combine these two file based on a layout.
I used the below code and able to extract the record. But now able to insert that to a 3'rd file in between the extract
FILE 1
CAID NUMBER 1-20
TID NUMBER 21-22
LABEL CHAR 23-44
BASE 45-60... (5 Replies)
Discussion started by: arunkumar_mca
5 Replies
LEARN ABOUT MOJAVE
io::atomicfile5.18
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 v5.18.2 2005-02-10 IO::AtomicFile(3)