Hi All,
I am trying to read output from a command. The output format is as follows:
Thursday 13 Mar 2008 Information
This is sample text
Friday 14 Mar 2008 Warning
This is one more sample text
First line contains informtation (date etc) and the 2nd line contains some information.
... (3 Replies)
I use fopen, fscanf, fclose to read a file. It can work well. since many files should be read, a function is created with the same code. But in the function, fscanf can not work well.
for example, the first line of the the file is: > filename
but the fscanf will give: 207/23/eee/34
it appears... (2 Replies)
Hi All,
I have to write one expect script to login to one system.
I am using
set timeout -1
match_max 100000
spawn ssh root@hostname
Now when I do spawn ssh to that host it send some warning message and one challenge
Challenge: 111-2345
I need to read this challenge value and has... (1 Reply)
Hi
I am new to Unix shell scripting. But i need help to slove the below issue.
Issue description:
I want to read table, view names and package names in a file
my plan to find the table name is : search "From" key word find the table or view
To find the packge name : Search "Package... (5 Replies)
Hi friends,
Hope everybody is fine. First have a look at my code, then we will talk about it.
$ cat copy.c
#include <stdio.h>
#define PERMS 0644 /* RW for owner, R for group, others */
#define BUFSIZE 1
char *progname;
int main(int argc,char * argv)
{
int f1, f2, n;
... (4 Replies)
Hello everyone,
Can someone please explain the input buffer behaviour for the read command in ksh93 on AIX?
I have 'googled' for weeks now, and did not find a satisfactory answer or solution to my dilemma.
I have the following code:
STTY=$(stty -g)
if ;then
stty -echo -icanon time 0 min... (1 Reply)
After some thought.
I am uncomfortable issuing my professors name where, there may be unintended side effects from any negative responses/feedback. Willing to re post if I can omit school / professor publicly, but can message moderator for validation? I am here for knowledge and understanding,... (1 Reply)
dear friends
I have a wrote a shell script which works like this.
1.) a command is executed and the log is moved in the file.
2.) this file is copied in to the other file.
3.) used a grep command to find a particular word.
4.) if a particular word is there then the script will go to next... (4 Replies)
Hi.
How can I create a history function? (By "read" command or so)
&
How can I configure a read command so that the arrow keys are not displayed so funny? (^[[A)
Thanks in advance. (4 Replies)
Hello,
I'm facing some problems with a barcode scanner from Cygnal Inc, model Sweda SL-20. Info from lsusb -v:
Bus 003 Device 003: ID 10c4:ff11 Cygnal Integrated Products, Inc.
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
... (4 Replies)
Discussion started by: minharojr
4 Replies
LEARN ABOUT ULTRIX
close
close(2) System Calls Manual close(2)Name
close - delete a descriptor
Syntax
close(fd)
int fd;
Description
The call deletes a descriptor from the per-process object reference table. If the descriptor is the last reference to the underlying
object, then the object is deactivated. For example, on the last close of a file, the current pointer associated with the file is lost.
On the last close of a socket, discards associated naming information and queued data. On the last close of a file holding an advisory
lock, the lock is released. For further information, see
A process's descriptors are automatically closed when a process exits, but because each process can have a limited number of active
descriptors, is necessary for programs that deal with many descriptors.
When a process forks, all descriptors for the new child process reference the same objects as they did in the parent process before the
fork. For further information, see If a new process is then to be run using the process would normally inherit these descriptors. Most of
the descriptors can be rearranged with the system call or deleted with before is called. However, if any descriptors are needed if the
fails, they must be closed if the execve succeeds. For this reason, the call, fcntl(d, F_SETFD, 1), is provided. This call arranges that a
descriptor is closed after a successful call. The call, fcntl(d, F_SETFD, 0), restores the default, which is to not close the descriptor.
When is used on a descriptor that refers to a remote file over NFS, and that file has been modified by using then any cached data is
flushed before returns. If an asynchronous write error has occurred previously with this remote file, or occurred as part of the flush
operation described above, then returns -1 and errno will be set to the error code. The return code from should be inspected by any program
that can over NFS.
Return Values
Upon successful completion, a value of 0 is returned. Otherwise, a value of -1 is returned, and the global integer variable, errno, is set
to indicate the error.
Diagnostics
The system call fails under the following conditions:
[EBADF] D is not an active descriptor.
[EINTR] The function was interrupted by a signal.
If an error occurs on an asynchronous write over NFS, the error cannot always be returned from a system call. The error code is returned
on or The following are NFS-only error messages:
[EACCESS] The requested address is protected, and the current user has inadequate permission to access it.
[ENOSPC] There is no free space remaining on the file system containing the file.
[EDQUOT] The user's quota of disk blocks on the file system containing the file has been exhausted.
[EIO] An I/O error occurred while reading from or writing to the file system.
[EROFS] The file is on a read-only file system.
[ESTALE] The fd argument is invalid because the file referred to by that file handle no longer exists or has been revoked.
[ETIMEDOUT] A write operation failed because the server did not properly respond after a period of time that is dependent on the
options.
See Alsoaccept(2), execve(2), fcntl(2), flock(2), fsync(2), open(2), pipe(2), socket(2), socketpair(2), write(2)close(2)