Hi All,
I have problem with database validations, actually my requirement is, my code will generate some seqno;s, which i have to check in database, whether the generated seqno;s are present in database or not, if the generated seqno;s are present in the database means, i need to generate... (2 Replies)
I have a file that I need to parse multiple sections from the file.
The file contains multiple lines that start with ST (Abunch of data)
Then the file contains multiple lines that start with SE (Abunch of data)
SE*30*0001 ... (1 Reply)
I have a file that I need to parse multiple sections from the file.
The file contains multiple lines that start with ST (Abunch of data)
Then the file contains multiple lines that start with SE (Abunch of data)
SE*30*0001
ST*810*0002
I need all of the lines between and including these.... (6 Replies)
I have a FILE a.txt which has the following data
113901.94,113901.94,56950.97,56950.97,NOT MATCHING,NOT MATCHING
10693.04,10693.04,5346.52,5346.52,NOT MATCHING,NOT MATCHING
1901.94,1901.94,550.97,550.97,NOT MATCHING,NOT MATCHING
103.04,103.04,53.52,53.52,NOT MATCHING,NOT MATCHING
#### This... (2 Replies)
Hello,
I'm wondering where I could go to learn how to edit file sections that cross multiple lines. I'm wanting to write scripts that will add Gnome menu entries for all users on a system for scripts I write, etc. I can search an replace simple examples with sed, but this seems more complex.
... (8 Replies)
So, I'm going to install Oracle DB within my Suse host...
Also, I would like to run Virtual Box and Tomcat..
ok, tomcat is going to be runnable app that will start at boot..
but, how to handle Oracle and virtual box?
I would like to have an Oracle under it's own user, and to be able to use... (0 Replies)
Hi Team,
In our project we have written below 2 scripts like
Script1:
Shell script start & END
Begin Audit process - uses teradata bteq
END Audit Process
Script 2: Environemtal variable file different
Now Client ask to change this requirement and need below files:
Script1:... (1 Reply)
Hi,
I noticed a weird behavior in extundelete way to choose the filename to which it will restore a given inode. Here is an example :
root@rescue:~# for after in '' 0 740 741 $(date -d 'now - 1 year' +%s); do rm -rf RECOVERED_FILES/; echo -e "$(date -d@$after 2> /dev/null || echo No... (4 Replies)
Dear Team Members,
I have a unique problem. Below is the dataset which I have. I am writing a script which will read through the file and pull the invoice no. (Field 2 of C1 row).
"C1",990001,"L1","HERO","MOTORCYCLE","ASIA-PACIFIC","BEIJING"
"C2","CLUTCH","HYUNDAI",03032017... (13 Replies)
Hello All,
I want to change date part in file name to yesterday date in the file name.
example file name file-12122017-06-30-41.dat want file-12112017-06-30-41.dat I am doing like below. Below it is not changing the filename. Actually it is not parsing the $today and $yesterday value in... (1 Reply)
Discussion started by: looney
1 Replies
LEARN ABOUT LINUX
getline
GETLINE(3) Linux Programmer's Manual GETLINE(3)NAME
getline, getdelim - delimited string input
SYNOPSIS
#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);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
getline(), getdelim():
Since glibc 2.10:
_POSIX_C_SOURCE >= 200809L || _XOPEN_SOURCE >= 700
Before glibc 2.10:
_GNU_SOURCE
DESCRIPTION
getline() reads an entire line from stream, storing the address of the buffer containing the text into *lineptr. The buffer is null-termi-
nated and includes the newline character, if one was found.
If *lineptr is NULL, then getline() will allocate a buffer for storing the line, which should be freed by the user program. (In this case,
the value in *n is ignored.)
Alternatively, before calling getline(), *lineptr can contain a pointer to a malloc(3)-allocated buffer *n bytes in size. If the buffer is
not large enough to hold the line, getline() resizes it with realloc(3), 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 allocated size respectively.
getdelim() works like getline(), except that a line delimiter other than newline can be specified as the delimiter argument. As with get-
line(), 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 byte. This value can be used to handle embedded null bytes in the line read.
Both functions return -1 on failure to read a line (including end-of-file condition).
ERRORS
EINVAL Bad arguments (n or lineptr is NULL, or stream is not valid).
VERSIONS
These functions are available since libc 4.6.27.
CONFORMING TO
Both getline() and getdelim() were originally GNU extensions. They were standardized in POSIX.1-2008.
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);
}
free(line);
exit(EXIT_SUCCESS);
}
SEE ALSO read(2), fgets(3), fopen(3), fread(3), gets(3), scanf(3), feature_test_macros(7)COLOPHON
This page is part of release 3.27 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
GNU 2010-06-12 GETLINE(3)