Hi,
I have a comma (,) delimited file, in which few fields are enclosed with in double quotes " ". I have to print the records in the file which donot have expected number of field with the line number.
File1
====
name,desgnation,doj,project #header#... (7 Replies)
input:
ref.1;rack.1;1 #group1
ref.1;rack.1;2 #group1
ref.1;rack.2;1 #group2
ref.2;rack.3;1 #group3
ref.2;rack.3;2 #group3
ref.2;rack.3;3 #group3
Among records from same group (i.e. with same 1st and 2nd field - separated by ";"), I would need to keep the last record... (5 Replies)
Hi experts,
I need to print the first field first then last two fields should come next and then i need to print rest of the fields.
Input :
a1,abc,jsd,fhf,fkk,b1,b2
a2,acb,dfg,ghj,b3,c4
a3,djf,wdjg,fkg,dff,ggk,d4,d5
Expected output:
a1,b1,b2,abc,jsd,fhf,fkk... (6 Replies)
Hi,
input:
AA|BB|CC
DD|EE
FF
what I am trying to get:
AA|BB|CC
DD|EE|
FF||
I tried to create first an UDF for printing repeats, but I think I have an issue with my END section or my array:
function repeat(str, n, rep, i)
{
for(i=1 ;i<n;i++)
rep=rep str
return rep
}
... (6 Replies)
Hi
I have a file as below
<field1> <field2> <field3> ... <field_num1> <field_num2>
Trying to sort based on difference of <field_num1> and <field_num2> in desceding order and print all fields.
I tried this and it doesn't sort on the difference field .. Appreciate your help.
cat... (9 Replies)
Hello:
I want to print out the even number of fields plus the first column as row identifiers.
input.txt
ID X1 ID X2 ID X3 ID X4
A 700 A 1200 A 400 A 1300
B 2000 B 1000 B 2000 B 600
C 1400 C 200 C 1000 C 1200
D 1300 D 500 D 600 D 200and the output is:
output.txt
ID X1 X2 X3... (3 Replies)
I am trying to use awk to find all the $3 values in file2 that are between $2 and $3 in file1. If a value in $3 of file2 is between the file1 fields then it is printed along with the $6 value in file1. Both file1 and file2 are tab-delimited as well as the desired output. If there is nothing to... (4 Replies)
I've written an awk script to compare two fields in two different files and then print portions of each file on the same line when matched. It works reasonably well, but every now and again, I notice some errors and cannot seem to figure out what the issue may be and am turning to you for help.
... (2 Replies)
Hi,
My input looks like that:
A|123|qwer
A|456|tyui
A|456|wsxe
B|789|dfgh
Using awk, I am trying to get:
A|123;456|qwer;tyui;wsxe
B|789|dfgh
For records with same $1, group all the $2 in a field (without replicates), and all the $3 in a field (without replicates).
What I have tried:... (6 Replies)
Hello all, I am having trouble with what should be an easy task, but seem to be missing something fundamental. I have two files, with File 1 consisting of a single field of many thousands of records. I also have File 2 with two fields and many thousands of records.
My goal is that when $1 of... (2 Replies)
Discussion started by: jvoot
2 Replies
LEARN ABOUT REDHAT
getdelim
GETLINE(3) Linux Programmer's Manual GETLINE(3)NAME
getline, getdelim - delimited string input
SYNOPSIS
#define _GNU_SOURCE
#include <stdio.h>
ssize_t getline(char **lineptr, size_t *n, FILE *stream);
ssize_t getdelim(char **lineptr, size_t *n, int delim, FILE *stream);
DESCRIPTION
getline() reads an entire line, storing the address of the buffer containing the text into *lineptr. The buffer is null-terminated and
includes the newline character, if a newline delimiter was found.
If *lineptr is NULL, the getline() routine will allocate a buffer for containing the line, which must be freed by the user program. Alter-
natively, before calling getline(), *lineptr can contain a pointer to a malloc()-allocated buffer *n bytes in size. If the buffer is not
large enough to hold the line read in, getline() resizes the buffer to fit with realloc(), updating *lineptr and *n as necessary. In either
case, on a successful call, *lineptr and *n will be updated to reflect the buffer address and size respectively.
getdelim() works like getline(), except a line delimiter other than newline can be specified as the delimiter argument. As with getline(),
a delimiter character is not added if one was not present in the input before end of file was reached.
RETURN VALUE
On success, getline() and getdelim() return the number of characters read, including the delimiter character, but not including the termi-
nating null character. This value can be used to handle embedded null characters in the line read.
Both functions return -1 on failure to read a line (including end of file condition).
ERRORS
EINVAL Bad parameters (n or lineptr is NULL, or stream is not valid).
EXAMPLE
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
int main(void)
{
FILE * fp;
char * line = NULL;
size_t len = 0;
ssize_t read;
fp = fopen("/etc/motd", "r");
if (fp == NULL)
exit(EXIT_FAILURE);
while ((read = getline(&line, &len, fp)) != -1) {
printf("Retrieved line of length %zu :
", read);
printf("%s", line);
}
if (line)
free(line);
return EXIT_SUCCESS;
}
CONFORMING TO
Both getline() and getdelim() are GNU extensions. They are available since libc 4.6.27.
SEE ALSO read(2), fopen(3), fread(3), gets(3), fgets(3), scanf(3)GNU 2001-10-07 GETLINE(3)