I have 11 directories with around 200 files in each. In each directory the files are labeled out.0 through out.201 . Each file has around 118 numbers in a single column. I need to sum the files in each directory so each directory will have a resultant vector that is 118 numbers long. I then... (5 Replies)
i have a file - it will be in sorted order on column 1
abc 0 1
abc 2 3
abc 3 5
def 1 7
def 0 1
--------
i'd like (awk maybe?) to get the results (any ideas)???
abc 5 9
def 1 8 (2 Replies)
Hy everybody,
I have three file with the same formating. I need to parse those files in order that for each first column of the first file, sum the second columns of first,second and third files. Can someone help me ?
example :
# more file1
00:00:12,137;7,0333333
# more file2... (6 Replies)
Hi,
I have below as i/p file:
5ABC 36488989 K 000010000ASB BYTRES
5PQR 45757754 K 000200005KPC HGTRET
5ABC 36488989 K 000045000ASB HGTRET
5GTH 36488989 K 000200200ASB BYTRES
5FTU ... (2 Replies)
Hi.. I'm very newbie here..
I wonder if somebody can help me..
I have multiple directories with same out file name for each directories..
./dirA/out.dat
./dirB/out.dat
./dirC/out.dat
..and so on..
for ./dirA/out.dat here is the structure content :
for ./dirB/out.dat the same... (6 Replies)
Hi.. I'm very newbie here..
I wonder if somebody can help me..
I have multiple directories with same out file name for each directories..
./dirA/out.dat
./dirB/out.dat
./dirC/out.dat
..and so on..
for ./dirA/out.dat here is the structure content :
for ./dirB/out.dat the same... (4 Replies)
I have a file (let say file B) like this:
File B:
A1 3 5
A1 7 9
A2 2 5
A3 1 3
The first column defines a filename and the other two define a range in that specific file. In the same directory, I have also three more files (File A1, A2 and A3). Here is 10 sample lines... (3 Replies)
i have multiple files with Batch Header, Record detail & Batch trailer data in the files like :
BH 20150225950050N8262
RD 20140918000000 99999999 unk Deferred Settlement -13950
BT01 -13950
*Above sample data donot have the spaces coorectly defined. I do have multiple batch trailer... (1 Reply)
Hi Experts,
Please bear with me, i need help
I am learning AWk and stuck up in one issue.
First point : I want to sum up column value for column 7, 9, 11,13 and column15 if rows in column 5 are duplicates.No action to be taken for rows where value in column 5 is unique.
Second point : For... (12 Replies)
Discussion started by: as7951
12 Replies
LEARN ABOUT CENTOS
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 v5.16.3 2005-02-10 IO::AtomicFile(3)