I have created these files in a particular directory
a_1.txt
a_2.txt
...
..
a_n.txt
Each file has a single line.
I want to write a output file a.txt, which will have concantated value of string from all the files.
which utility should i use. copy, cat or paste????
Can anyone help... (5 Replies)
I have two files, each of them has 12 lines, fileA has 3 columns, fileB has 1 column, like the following
FileA
a 1
b 2
c 3
..blabla
FileB
A
B
C
..blabla
Now I am trying to put the content of fileB as column 3 of fileA, e.g.
a 1 A
b 2 B
c 3 C (3 Replies)
hi,
i am facing a problem in merging two files using awk,
the problem is as stated below,
file1:
A|B|C|D|E|F|G|H|I|1
M|N|O|P|Q|R|S|T|U|2
AA|BB|CC|DD|EE|FF|GG|HH|II|1
....
....
....
file2 :
1|Mn|op|qr (2 Replies)
hi
i have two files
file1
1234567
1234678
1234679
file2
98765|jjkskk|9393|iyutr
98765|kkooo|9393|hjjjd
98765|abcvfg|9393|sskds
output should be
1234567|jjkskk|9393|iyutr
1234678|kkooo|9393|hjjjd
1234679|abcvfg|9393|sskds (5 Replies)
Hello,
i'd like a bash script to merge 2 files without duplicate lines.
Example :
file1 :
toto
titi
file2 :
toto
tata
Expected result, file3 :
toto (5 Replies)
Hi,
I would like to know how can I merge files based on their coordinates, but mantaining the score of each file in the output file like:
Note: 1st column is for chromosome, 2nd for start, 3rd for end of segment, 4th for score
file1:
1 200 300 20
1 400 500 30
file2:
1 200 350 30
1... (1 Reply)
Hi,
My requirement is,there is a directory location like:
:camp/current/
In this location there can be different flat files that are generated in a single day with same header and the data will be different, differentiated by timestamp, so i need to verify how many files are generated... (10 Replies)
Dear Gents,
Please I need your help... I need small script :) to do the following.
I have a thousand of files in a folder produced daily.
I need first to merge all files called. txt (0009.txt, 0010.txt, 0011.txt) and and to output a resume of all information on 2 separate files in csv... (14 Replies)
Discussion started by: jiam912
14 Replies
LEARN ABOUT NETBSD
getdelim
GETDELIM(3) BSD Library Functions Manual GETDELIM(3)NAME
getdelim, getline -- read a delimited record from a stream
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <stdio.h>
ssize_t
getdelim(char ** restrict lineptr, size_t * restrict n, int delimiter, FILE * restrict stream);
ssize_t
getline(char ** restrict lineptr, size_t * restrict n, FILE * restrict stream);
DESCRIPTION
The getdelim() function reads from the stream until it encounters a character matching delimiter, storing the input in *lineptr. The buffer
is NUL-terminated and includes the delimiter. The delimiter character must be representable as an unsigned char.
If *n is non-zero, then *lineptr must be pre-allocated to at least *n bytes. The buffer should be allocated dynamically; it must be possible
to free(3) *lineptr. getdelim() ensures that *lineptr is large enough to hold the input, updating *n to reflect the new size.
The getline() function is equivalent to getdelim() with delimiter set to the newline character.
RETURN VALUES
The getdelim() and getline() functions return the number of characters read, including the delimiter. If no characters were read and the
stream is at end-of-file, the functions return -1. If an error occurs, the functions return -1 and the global variable errno is set to indi-
cate the error.
The functions do not distinguish between end-of-file and error, and callers must use feof(3) and ferror(3) to determine which occurred.
EXAMPLES
The following code fragment reads lines from a file and writes them to standard output.
char *line = NULL;
size_t linesize = 0;
ssize_t linelen;
while ((linelen = getline(&line, &linesize, fp)) != -1)
fwrite(line, linelen, 1, stdout);
if (ferror(fp))
perror("getline");
ERRORS
[EINVAL] lineptr or n is a NULL pointer.
[EOVERFLOW] More than SSIZE_MAX characters were read without encountering the delimiter.
The getdelim() and getline() functions may also fail and set errno for any of the errors specified in the routines fflush(3), malloc(3),
read(2), stat(2), or realloc(3).
SEE ALSO ferror(3), fgets(3), fopen(3)STANDARDS
The getdelim() and getline() functions conform to IEEE Std 1003.1-2008 (``POSIX.1'').
BSD June 30, 2010 BSD