Sponsored Content
Full Discussion: Read numbers from file
Top Forums Shell Programming and Scripting Read numbers from file Post 302805509 by vish6251 on Friday 10th of May 2013 09:30:39 AM
Old 05-10-2013
The previous suggestion worked for me however, now instead of a txt file with one integer per line, I want read a csv file and apply script to get the statistics of marks. How would i extract values from column 3 of csv file and feed them to the script? can i use 'awk' ?
Sample csv :
Code:
12;28;32;32
23;54;75;6
12;34;55;45
242;42;85;63
32;4;24;38
-1;-1;-1;-1


Last edited by vish6251; 05-10-2013 at 10:40 AM..
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

read numbers from file and output which numbers belongs to which range

Howdy experts, We have some ranges of number which belongs to particual group as below. GroupNo StartRange EndRange Group0125 935300 935399 Group2006 935400 935476 937430 937459 Group0324 935477 935549 ... (6 Replies)
Discussion started by: thepurple
6 Replies

2. Programming

Cannot read a file with read(fd, buffer, buffersize) function

# include <stdio.h> # include <fcntl.h> # include <stdlib.h> # include <sys/stat.h> int main(int argc, char *argv) { int fRead, fPadded, padVal; int btRead; int BUFFSIZE = 512; char buff; if (argc != 4) { printf ("Please provide all of the... (3 Replies)
Discussion started by: naranja18she
3 Replies

3. Shell Programming and Scripting

Help with addition of 2 numbers that are read from a file

I am trying to add free and used memory (so that i can compute percentage used)of remote nodes using shell script. I use the openssh-server,expect tool and ssh script. 1)login.txt (info of nodes): ip1|username|password ip2|username|password . . . 3)sshlogin.sh #!/bin/bash ... (1 Reply)
Discussion started by: marmik1903
1 Replies

4. Shell Programming and Scripting

the smallest number from 90% of highest numbers from all numbers in file

Hello All, I am having problem to find what is the smallest number from 90% of highest numbers from all numbers in file. I am having file with thousands of lines and hundreds of columns. I am familiar mainly with bash but I am open to whatever suggestion witch will lead to the solutions. If I... (11 Replies)
Discussion started by: Apfik
11 Replies

5. UNIX for Dummies Questions & Answers

When reading a csv file, counter to read 20 lines and wait for minute then read next 20 till end

Hello All, i am a newbie and need some help when reading a csv file in a bourne shell script. I want to read 10 lines, then wait for a minute and then do a reading of another 10 lines and so on in the same way. I want to do this till the end of file. Any inputs are appreciated ... (3 Replies)
Discussion started by: victor.s
3 Replies

6. Shell Programming and Scripting

Read in numbers from a datafile

Hi, I want to be able to read numbers from many files which have the same general form as follows: C3H8 4.032258004031807E-002 Phi = 1.000000E+00 Tau = 5.749E+00 sL0 = 3.805542E+01 dL0 = 1.514926E-02 Tb = 2.328291E+03 Tu = 3.450E+02 Alpha = ... (3 Replies)
Discussion started by: lost.identity
3 Replies

7. Shell Programming and Scripting

Read from file and execute the read command

Hi, I am facing issues with the below: I have a lookup file say lookup.lkp.This lookup.lkp file contains strings delimited by comma(,). Now i want to read this command from file and execute it. So my code below is : Contents in the lookup.lkp file is : c_e,m,a,`cd $BOX | ls cef_*|tail... (7 Replies)
Discussion started by: vital_parsley
7 Replies

8. Shell Programming and Scripting

Adding (as in arithmetic) to numbers in columns in file, and writing new file with new numbers

Hi again. Sorry for all the questions — I've tried to do all this myself but I'm just not good enough yet, and the help I've received so far from bartus11 has been absolutely invaluable. Hopefully this will be the last bit of file manipulation I need to do. I have a file which is formatted as... (4 Replies)
Discussion started by: crunchgargoyle
4 Replies

9. Programming

Read in numbers from console won't stop at newline.

Hello, I have snippet code from Lippman's <<C++ primer>>. The program is to convert regular decimal (0 ~ 15) numbers to basic hexdecimals. The instruction tells the program will execute by hitting newline at the end. When I tried to run the compiled program, hitting ENTER did not work as... (3 Replies)
Discussion started by: yifangt
3 Replies

10. UNIX for Beginners Questions & Answers

Read a file with decimal numbers in bash

Hello, I have the following script while read id fraction do sambamba -h -f bam -t 10 --subsampling-seed=50 -s $frac ${id}.bam -o ${id}.out.bam done < fraction.txt where fraction.txt has two columns (id,fraction) and 50 rows I am unable to run this as bash is not able to read the second... (2 Replies)
Discussion started by: nans
2 Replies
ATF-SH(1)						    BSD General Commands Manual 						 ATF-SH(1)

NAME
atf-sh [-s shell] -- interpreter for shell-based test programs SYNOPSIS
atf-sh script DESCRIPTION
atf-sh is an interpreter that runs the test program given in script after loading the atf-sh(3) library. atf-sh is not a real interpreter though: it is just a wrapper around the system-wide shell defined by ATF_SHELL. atf-sh executes the inter- preter, loads the atf-sh(3) library and then runs the script. You must consider atf-sh to be a POSIX shell by default and thus should not use any non-standard extensions. The following options are available: -s shell Specifies the shell to use instead of the value provided by ATF_SHELL. ENVIRONMENT
ATF_LIBEXECDIR Overrides the builtin directory where atf-sh is located. Should not be overridden other than for testing purposes. ATF_PKGDATADIR Overrides the builtin directory where libatf-sh.subr is located. Should not be overridden other than for testing purposes. ATF_SHELL Path to the system shell to be used in the generated scripts. Scripts must not rely on this variable being set to select a specific interpreter. EXAMPLES
Scripts using atf-sh(3) should start with: #! /usr/bin/env atf-sh Alternatively, if you want to explicitly choose a shell interpreter, you cannot rely on env(1) to find atf-sh. Instead, you have to hardcode the path to atf-sh in the script and then use the -s option afterwards as a single parameter: #! /path/to/bin/atf-sh -s/bin/bash ENVIRONMENT
ATF_SHELL Path to the system shell to be used in the generated scripts. SEE ALSO
atf-sh(3) BSD
September 27, 2014 BSD
All times are GMT -4. The time now is 03:32 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy