Hi ppl,
We are using Sun OS and recently, encountered this strange problem.
When issuing the "w" or "who" command, the system produce no listing. See screen shot below.
-----------------------
$ w
2:56pm up 2 day(s), 21:10, 0 users, load average: 1.03, 0.75, 0.69
User tty ... (6 Replies)
Hi all, below is my PERL script
$ids = $dbh->prepare ("select * from tableA");
$ids->execute();
$names = $ids->fetchall_arrayref();
print " Total valid ids is $#names \n"; Table only has 1 column, approx 400 rows
the value of $#names is -1. Would anyone point out what could have caused the... (1 Reply)
The rdist command script is called in the program to synchronize the updated files, I wonder whether the rdist returned can be fetched or not from the program? (0 Replies)
Hi, there,
I want to excute the remote command shell via "remsh", are there any simple or best way to get the result of remote shell from local ? thanks. (2 Replies)
Hi Friends,
REQUIREMENT: Want to delete files from the current directory match with the same in the file test.txt
set -x
i=1
echo "i=$i"
COUNT=`sed -n '$=' test.txt`
echo "Count=$COUNT"
while
do
"## Here is error##"
FILETOREMOVE=`sed -n \'$i,1p\' test.txt`
echo $FILETOREMOVE... (5 Replies)
Hi all
can i use unix variable holds the data returned by oracle in a shell script?
x=sqlplus -s u/p@h <<! >>fg.log
whenever sqlerr exit 1
select count(*) from schema.mat_view;
exit
!
echo $x
Will the $x return the value of count(*)?
thanks
megh (1 Reply)
I need to delete the files that are returned by this ls command:
root@16:06:37@whci03:/var/log/whci# ls -ltrhS | grep "Apr "
-rw-r--r-- 1 whci users 180M Apr 4 00:00 20090403_whci_Access.txt
-rw-r--r-- 1 whci users 185M Apr 4 00:00 20090403_whci_Access.txt
-rw-r--r-- 1 whci users 189M... (1 Reply)
Hi all,
I tried to find the reply using google, yet did not find a conclusive answer.
When I use 'find . -ls', I get something like:
3423297 8 -rw-r--r-- 1 useradmin staff 135 4 apr 09:46 ./.~lock.dir-file-list.csv#
I know that
3423297 is the inode
-rw-r--r-- ... (2 Replies)
Hi all,
I am wondering how can I check when a variable has nothing returned in it. I am trying to store a pid in this variable to see if a script is running in the background. So I am using something like that
proc_pid=`ps -ef |grep script.sh|grep -v grep|awk '{print $2}'`
if
then
... (1 Reply)
Hi Am Using unix Aix
When i ftp the zero size file getting the netout: write returned 0? (1 Reply)
Discussion started by: Venkatesh1
1 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)