04-20-2016
Hello looney,
Quote:
One more query, there will be around 10 million records in source file
Yes, you could do division by
int(NR/1000000) to make only 10 files as per your requirement. You could double check it as I don't have 10 million line Input_file with me, so logic is simple like if you wanted to make 10 files just divide the total number of lines by the number of files which you need and you will get per file total number of lines then.
Quote:
Do i need to close it also. ?
Yes, we do need to close the files for example
close(f) where
f is a variable for the filename.
I hope this helps you.
Thanks,
R. Singh
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hello,
i have another sed question.. I'm trying to do variable substition with sed and i'm running into a problem.
my var1 is a string constructed like this:
filename1 filerev1 filepath1
my var2 is another string constructed like this:
filename2 filerev2 filepath2
when i do... (2 Replies)
Discussion started by: alrinno
2 Replies
2. Shell Programming and Scripting
I need to write a login script for multiple computers, however, one of the directories in question will have a different name from computer to computer.
~/Library/Application\ Support/Firefox/Profiles/<unique filename>.default/myfile
For the directory named <unique filename>.default , I... (2 Replies)
Discussion started by: glev2005
2 Replies
3. Shell Programming and Scripting
I've been working on a UNIX script (csh) that will be starting a java application
The goal is to get the version number and location (needed by the application) from the path of the script
Example:
Location of the script= /apps/myapp/versionNum/script/start.csh
I need:... (8 Replies)
Discussion started by: brianjbrady
8 Replies
4. Shell Programming and Scripting
I'm trying to write my first shell script and got a bit stuck with this:
I've got myscript.sh that executes from /fromhere.
If the script is run with the syntax ./myscript.sh tothere:
I need to make a variable inside the script containing /fromhere/tothere
...and if the script is run with... (10 Replies)
Discussion started by: Chronomaly
10 Replies
5. Shell Programming and Scripting
Hi,
I have following path:
set file_path = D:/forums/prac/somedir/new1/file1.txt
or set file_path = E:/new/forums1/prac/somedir/new2/file2.txt
I need to grep "somedir" from file path. In this case preceding directory "prac" remains same for both the paths, but directories preceding... (7 Replies)
Discussion started by: sarbjit
7 Replies
6. UNIX for Dummies Questions & Answers
I have a script like this running under OS X 10.8. The problem arises when the find command encounters a space in the path name. I need the "dir" variable as I'll be extending the script to more general use.
#!/bin/bash
CFS=$IFS
IFS=$(echo)
set dir = "/Users/apta/Library/Mail\... (3 Replies)
Discussion started by: apta
3 Replies
7. UNIX for Dummies Questions & Answers
Hai
how can I assign directory path to a variable in perl
Thanks&Regards
kiran (2 Replies)
Discussion started by: kiran425
2 Replies
8. UNIX for Advanced & Expert Users
Hai
how can I assign directory path to a variable in perl
Thanks&Regards
kiran (3 Replies)
Discussion started by: kiran425
3 Replies
9. Shell Programming and Scripting
Hi All,
Need some help in parsing a directory listing .. output into 2 files
Input file
level1,/level2/level3/level4/ora001,10,IBB23
level1,/level2/level3/level4/ora001/blu1,,IBB23
level1,/level2/level3/level4/ora001/clu1,,IBB23
level1,/level2/level3/level4/ora002,,IBB24... (10 Replies)
Discussion started by: greycells
10 Replies
10. UNIX for Beginners Questions & Answers
What is the difference ../directory path and ./directory path in ksh? (1 Reply)
Discussion started by: TestKing
1 Replies
LEARN ABOUT ULTRIX
ppmtopgm
ppmtopgm(1) General Commands Manual ppmtopgm(1)
NAME
ppmtopgm - convert a portable pixmap into a portable graymap
SYNOPSIS
ppmtopgm [ppmfile]
DESCRIPTION
Reads a portable pixmap as input. Produces a portable graymap as output. The output is a "black and white" rendering of the original
image, as in a black and white photograph. The quantization formula used is .299 r + .587 g + .114 b.
Note that although there is a pgmtoppm program, it is not necessary for simple conversions from pgm to ppm , because any ppm program can
read pgm (and pbm ) files automatically. pgmtoppm is for colorizing a pgm file. Also, see ppmtorgb3 for a different way of converting
color to gray. And ppmdist generates a grayscale image from a color image, but in a way that makes it easy to differentiate the original
colors, not necessarily a way that looks like a black and white photograph.
QUOTE
Cold-hearted orb that rules the night
Removes the colors from our sight
Red is gray, and yellow white
But we decide which is right
And which is a quantization error.
SEE ALSO
pgmtoppm(1),ppmtorgb3(1),rgb3toppm(1),ppmdist(1),ppm(5),pgm(5)
AUTHOR
Copyright (C) 1989 by Jef Poskanzer.
10 April 2000 ppmtopgm(1)