Hi.
If we have this file
A B C
7 8 9
1 2 10
and this other file
A C D F
7 9 2 3
9 2 3 4
The result i´m looking for is intersection with A B C D F
so the answer here will be (10 Replies)
My Friends,
Need your help to find the difference between few columns from two comma delimited files. For example, File1 and File2 has 22 columns, and I want to find the difference in first 12 columns.
I have list of file names in MyListOfFiles2Compare.txt. Data is separated with commas.... (5 Replies)
Hello all,
Could someone please let me know shell script or awk solution to compare two columns in two files? Here is the sample -
file1.txt
abc/xyz,M1234
ddd/lyg,M2345
cnn/tnt,G0123
file2.txt
A,abc/xyz,kk,dd,zz,DCT,G0123,1
A,ddd/lyg,kk,dd,zz,DCT,M1234,1... (17 Replies)
Hi all,
I would like to compare a column in one file to a column in another file and when there is a match it prints the first column and the corresponding second column. Example
File1
ABA
ABC
ABE
ABF
File 2
ABA 123
ABB 124
ABD 125
ABC 126
So what I would like printed to a file... (0 Replies)
Inspired by the extremely short awk code from Ygor on this post I wanted to compare two files on only one field. I can't get it to work. Can anybody help on explaining the code and fix the code?
My code which does not work:
awk 'BEGIN{a=1};a!=1' file1.txt file2.txt >outfile.txt
file1.txt... (1 Reply)
Hi
I have file 1 like this
and file 2 like this
I need to compare column 3 of both files and delete lines in file1 with same column 3 values in two files. So the output is
I tried with perl but didnt work. A perl code will be good as I am learning the language, but any other code would... (1 Reply)
Hi all, I'm pretty much a newbie to UNIX. I would appreciate any help with UNIX coding on comparing two large csv files (greater than 10 GB in size), and output a file with matching columns.
I want to compare file1 and file2 by 'id' and 'chain' columns, then extract exact matching rows'... (5 Replies)
Hi All,
I have a.dat file with content
1,338,30253395122015103,2015103,UB0085000,STMT151117055527002,,,
1,338,30253395122015103,2015103,UB0085000,STMT151117055527001,,,
and b.dat having content
1,STMT151117055527001,a1.txt,b1.txt,c1.txt
1,STMT151117055527002,a2.txt,b2.txt,c2.txt
... (13 Replies)
Discussion started by: PRAMOD 96
13 Replies
LEARN ABOUT OSX
getline
GETLINE(3) BSD Library Functions Manual GETLINE(3)NAME
getdelim, getline -- get a line from a stream
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <stdio.h>
ssize_t
getdelim(char ** restrict linep, size_t * restrict linecapp, int delimiter, FILE * restrict stream);
ssize_t
getline(char ** restrict linep, size_t * restrict linecapp, FILE * restrict stream);
DESCRIPTION
The getdelim() function reads a line from stream, delimited by the character delimiter. The getline() function is equivalent to getdelim()
with the newline character as the delimiter. The delimiter character is included as part of the line, unless the end of the file is reached.
The caller may provide a pointer to a malloced buffer for the line in *linep, and the capacity of that buffer in *linecapp. These functions
expand the buffer as needed, as if via realloc(). If linep points to a NULL pointer, a new buffer will be allocated. In either case, *linep
and *linecapp will be updated accordingly.
RETURN VALUES
The getdelim() and getline() functions return the number of characters written, excluding the terminating NUL character. The value -1 is
returned if an error occurs, or if end-of-file is reached.
EXAMPLES
The following code fragment reads lines from a file and writes them to standard output. The fwrite() function is used in case the line con-
tains embedded NUL characters.
char *line = NULL;
size_t linecap = 0;
ssize_t linelen;
while ((linelen = getline(&line, &linecap, fp)) > 0)
fwrite(line, linelen, 1, stdout);
ERRORS
These functions may fail if:
[EINVAL] Either linep or linecapp is NULL.
[EOVERFLOW] No delimiter was found in the first SSIZE_MAX characters.
These functions may also fail due to any of the errors specified for fgets() and malloc().
SEE ALSO fgetln(3), fgets(3), malloc(3)STANDARDS
The getdelim() and getline() functions conform to IEEE Std 1003.1-2008 (``POSIX.1'').
HISTORY
These routines first appeared in FreeBSD 8.0.
BUGS
There are no wide character versions of getdelim() or getline().
BSD November 30, 2010 BSD