While we're at it, another way:
Accepts redirects and input from pipe, as does most of the others. I have to say, I like the sed example above. Pretty nifty...
Hi,
I have a html file which is unformatted and need to concatenate the lines between each "table" statement in order to run an awk statement on it. Here is the example of the raw file:
<table border="0" cellspacing="0" cellpadding="0" class="playerDetails">
def
... (3 Replies)
Hi,
I would like a shell script that reads all files in a directory and concatenate them. It is not a simple concatenation. The first few lines of the files should not be included. The lines to be included are the lines from where 'START HERE' appears up to the end of the file. For example, I... (4 Replies)
Hi,
I have put a similar question in one of the other threads through which I got the solution shown below but I have some more condition to add to it, hence have further queries on it. I appologies if I should be putting this with the old thread.
I have a file which perform a grep on the... (1 Reply)
Hello, I have only recently begun with awk and need to write this:
I have an input consisting of a couple of letters, a space and a number followed by various other characters:
fiRcQ 9( )
klsRo 9( ) pause
fiRcQ 9( ) pause
klsRo continue 1
aPLnJ 62( )
fiRcQ continue 5
... and so on
I... (7 Replies)
Hi,
I'm attempting to join two lines in a file which are separated by a line break. The file contents are shown below:
event_id=0
id=0_20100505210853
IFOconfig=HLV
template=TaylorF2
Nlive=1000.0
Nruns=1.0
NIFO=3... (7 Replies)
Hi,
I have an ASCII text file where some of the lines are ending with '+' character.
I have to concatenate the next successive line with those lines having the trailing '+' char by removing that char.
The below awk code has some problems to do this task:
awk '{while(sub(/\+$/,"")) {... (12 Replies)
I have a peculiar file with record format like given below. Each line is wrapped to next lines after certain number of characters. I want to concatenate all wrapped lines into 1.
Input:(wrapped after 10 columns)
This is li
ne1
This is li
ne2 and
this line
is too lo
ng
Shortline
... (8 Replies)
Hi,
I need to concatenate some lines in a file based on the First 4 coloumns of a file .. (For Eg.)
Consider a file ...
I,01,000002,0666,00000.00,000,00,000,000, ,0
I,01,000002,0667,00000.00,000,00,000,000, ,0
I,01,000002,0666,00056.10
I,01,000002,0667,00056.10
I,01,000002,0666,00001... (6 Replies)
I have a data of 1 lac lines with the following format
abcde,1,2,3,4,
,ee
,ff
,gg
,hh
,mm
abcde,3,4,5,6,
,we
,qw
,as
,zx
,cf
abcde,1,5,6,7,
,dd
,aa
,er
....
.... (6 Replies)
Hello All Unix Users,
I am still new to Unix, however I am eager to learn it..
I have 2 files, some lines have some matching substrings, I would like to concatenate these lines into one lines, leaving other untouched. Here below is an example for that..
File 1 (fasta file):
>292183... (6 Replies)
Discussion started by: Mohamed EL Hadi
6 Replies
LEARN ABOUT REDHAT
getline
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)