02-27-2019
Hi drl,
Many thanks for taking the time to provide such an extensive answer - the support provided on this forum is really extraordinary. I could not have produced a script like yours with all the bells and whistles but the central for-if-else-loop seems indeed pretty straightforward.
I'm aware I should probably familiarize with awk but as a lay programmer (I use MATLAB quite a bit but that's about it) I find its syntax not particularly intuitive and time is just such a limited resource... *sigh*
In any case, many thanks again - both you and Rudi have been super helpful!
Robert
This User Gave Thanks to rcsapo For This Post:
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi,
I have a file with multiple records...and I have to select records based on first column....here is the sample file...
I01,abc,125,1a2,LBVI02
I01,abc,126,2b5,LBVI02
I02,20070530,254,abc,LLBI01
I02,20070820,111,bvd,NGBI01
I need all records with I01 in first field in one file and... (8 Replies)
Discussion started by: mgirinath
8 Replies
2. Shell Programming and Scripting
Dear All,
I would like to split a file of the following format into multiple files based on the number in the 6th column (numbers 1, 2, 3...):
ATOM 1 N GLY A 1 -3.198 27.537 -5.958 1.00 0.00 N
ATOM 2 CA GLY A 1 -2.199 28.399 -6.617 1.00 0.00 ... (3 Replies)
Discussion started by: tomasl
3 Replies
3. Shell Programming and Scripting
Hi,
I want to print column value based on row number say multiple of 8.
Input file:
line 1 67 34
line 2 45 57
. . .
. . .
line 8 12 46
. . .
. . .
line 16 24 90
. . .
. . .
line 24 49 67
Output
46
90
67 (2 Replies)
Discussion started by: Surabhi_so_mh
2 Replies
4. Shell Programming and Scripting
Hi,
I have a csv file with old data..i need to have only last 30 days from the current dateof data in the file.The fourth field in the file is a date field.i need to write a script to delete the old data by comparing the the fourth field with the (current date -30).I need to delete the rows in... (2 Replies)
Discussion started by: pals70423
2 Replies
5. Shell Programming and Scripting
Hello,
am I new to awk, and I am tryint to:
INPUT FILE:
"73423555","73423556","73423557","73423558","73423559"
OUTPUT FILE:
73423555
73423556
73423557
73423558
73423559
My useless code so far:
#!/bin/awk -F ','
BEGIN
{
i=0;
} (8 Replies)
Discussion started by: drbiloukos
8 Replies
6. Shell Programming and Scripting
Is there a way to read in a two-columned CSV file, and based on the fields in 1st column, output many different files? The input/output looks something like:
input.csv:
call Call Mom.
call Call T-Mobile.
go Go home.
go Go to school.
go Go to gas station.
play Play music.
play Play... (4 Replies)
Discussion started by: pxalpine
4 Replies
7. Shell Programming and Scripting
Hi , I want to compare first 3 columns of File A and File B and create a new file File C which will have all rows from File B and will include rows that are present in File A and not in File B based on First 3 column comparison.
Thanks in advance for your help.
File A
A,B,C,45,46... (2 Replies)
Discussion started by: ady_koolz
2 Replies
8. Shell Programming and Scripting
Hi experts,
I am using KSH and I am need to display file with number in front of file names and user can select it by entering the number.
I am trying to use following command to display list with numbers. but I do not know how to capture number and identify what file it is to be used for... (5 Replies)
Discussion started by: mysocks
5 Replies
9. Shell Programming and Scripting
All,
I guess by this time someone asked this kind of question, but sorry I am unable to find after a deep search.
Here is my request
I have many files out of which 2 sample files provided below.
File-1 (with A,B as column headers)
A,B
1,2
File-2 (with C, D as column headers)
C,D
4,5
I... (7 Replies)
Discussion started by: ks_reddy
7 Replies
10. Shell Programming and Scripting
Hello everyone,
I am using ksh on Solaris 10 and I'm gathering data in a CSV file that looks like this:
20170628-23:25:01,1,0,0,1,1,1,1,55,55,1
20170628-23:30:01,1,0,0,1,1,1,1,56,56,1
20170628-23:35:00,1,0,0,1,1,2,1,57,57,2
20170628-23:40:00,1,0,0,1,1,1,1,58,58,2... (6 Replies)
Discussion started by: ejianu
6 Replies
MWRAP(1) MWRAP manpage MWRAP(1)
NAME
mwrap - Octave/MATLAB mex generator
SYNOPSIS
mwrap [-mex outputmex] [-m output.m] [-c outputmex.c] [-mb] [-list] [-catch] [-c99complex] [-cppcomplex] infile1 infile2 ...
DESCRIPTION
mwrap is an interface generation system in the spirit of SWIG or matwrap. From a set of augmented Octave/MATLAB script files, mwrap will
generate a MEX gateway to desired C/C++ function calls and .m function files to access that gateway. The details of converting to and from
Octave's or MATLAB's data structures, and of allocating and freeing temporary storage, are hidden from the user.
OPTIONS
-mex specifies the name of the MEX function that the generated functions will call. This name will generally be the same as the prefix
for the C/C++ output file name.
-m specifies the name of the Octave/MATLAB script to be generated.
-c specifies the name of the C MEX file to be generated. The MEX file may contain stubs corresponding to several different generated
files.
-mb redirect Octave/MATLAB function output to files named in the input. In this mode, the processor will change Octave/MATLAB function
output files whenever it encounters a line beginning with @. If @ occurs alone on a line, the output will be turned off; if the
line begins with @function, the line will be treated as the first line of a function, and the m-file name will be deduced from the
function name; and otherwise, the characters after @ (up to the next set of white space) will be treated as a filename, and mwrap
will try to write to that file.
-list print to the standard output the names of all files that would be generated from redirect output by the -mb flag.
-catch surround library calls in try/catch blocks in order to intercept C++ exceptions.
-c99complex
use the C99 complex floating point types as the default dcomplex and fcomplex types.
-cppcomplex
use the C++ complex floating point types as the default dcomplex and fcomplex types.
mwrap 2012 MWRAP(1)