Oh, you are writing a real file. And making new AJAX requests every time to download the complete file; you might have said so. And replacing the entire file each time, not writing "1,2,3,..."
That fseek does nothing, delete it; you start over at the beginning of the file every time you re-open it anyway.
Make sure your logic's working. I think there might be precedence problems in
, make it
...and make sure that j ever gets incremented at all. You could test your server-side code by opening the file for append instead of overwrite, and doing fprintf(file, "%d\n", j); so that it adds numbers line by line. If it works right the .txt should contain the numbers in sequence by the end.
Last edited by Corona688; 06-04-2010 at 12:09 PM..
I have tried to show the file name whose size is greater than 200 byte in current directory.
Please help me.
ls -l | tr -s " " " " | cut -f 5,9 -d " " >out.txt
#set -a x `cat out.txt`
i=0
`cat out.txt` | while
do
read x
echo $x
#re=200
j=0
if }" < "200" ]
then
echo $j
j=`expr $j... (2 Replies)
Hi All,
I need information on file handling in UNIX enviornment.
If in UNIX enviornment I have two process..
P1
P2
Both accessing the same file simultaneosuly(read operation)..
Suppose P1 opened the file in read mode first and started reading the file..
Then P2 opens the same file in... (5 Replies)
Hi Folks,
I would like to monitor multipath IO on solaris for write and read operations.
Does "sar -d" include multipath IO information along with other block devices ?
Thanks,
Faizan. (0 Replies)
Hi,
We have smb client running on two of the linux boxes and smb server on another linux system. During a backup operation which uses smb, read of a file was allowed while write to the same file was going on.Also simultaneous writes to the same file were allowed.Following are the settings in the... (1 Reply)
I have a process running on two hosts in Active/Standby mode. Process running on active machine is handling the traffic while process running on Standby machine is sitting idle.
We have a debugging mechanism in which logs are generated on local machine. When logging is enabled then process running... (1 Reply)
Hi Unix Gurus,
I need to grep for a block that is between a start and end keyword and then in between I need to find and replace a keyword.
for eg: I need to search between Test = 000; and Test = 000; and find K9 and replace with M9
INPUT FILE
Define {
Replace = K9;
Test =... (6 Replies)
I have got a file in following format:
AAAAAAA
BBBBBBBB
CCCCCCC
DDDDDDD
I am trying to read this file and out put it in following format:
AAAAAAA,BBBBBBB,CCCCCCC,DDDDDD
Preferred method is shell or Perl.
Any help appreciated. (11 Replies)
Hello Guys, How all are doing?
I have an issue in Unix and want help from all of you
I have a file in UNIX which it read by line by line , If at the end of line '0' is written the it should fetch that line into another file and change '0' to '1'
and If at the end of line '1' is written then it... (10 Replies)
Discussion started by: adisky123
10 Replies
LEARN ABOUT SUNOS
fopen
fopen(3UCB) SunOS/BSD Compatibility Library Functions fopen(3UCB)NAME
fopen, freopen - open a stream
SYNOPSIS
/usr/ucb/cc[ flag ... ] file ...
#include <stdio.h>
FILE *fopen( file, mode);
const char *file, *mode;
FILE *freopen(file, mode, iop);
const char *file, *mode;
register FILE *iop;
DESCRIPTION
The fopen() function opens the file specified by file and associates a stream with it. If the open succeeds, fopen() returns a pointer to
be used to identify the stream in subsequent operations. The file argument points to a character string that contains the name of the file
to be opened. The mode argument is a character string having one of the following values:
r open for reading
w truncate or create for writing
a append: open for writing at end of file, or create for writing
r+ open for update (reading and writing)
w+ truncate or create for update
a+ append; open or create for update at EOF
The freopen() function opens the file specified by file and associates the stream pointed to by iop with it. The mode argument is used just
as in fopen(). The original stream is closed, regardless of whether the open ultimately succeeds. If the open succeeds, freopen() returns
the original value of iop.
The freopen() function is typically used to attach the preopened streams associated withstdin, stdout, and stderr to other files.
When a file is opened for update, both input and output can be performed on the resulting stream. Output cannot be directly followed by
input without an intervening fseek(3C) or rewind(3C). Input cannot be directly followed by output without an intervening fseek(3C) or
rewind(3C). An input operation that encounters EOF will fail.
RETURN VALUES
The fopen() and freopen() functions return a NULL pointer on failure.
USAGE
The fopen() and freopen() functions have transitional interfaces for 64-bit file offsets. See lf64(5).
SEE ALSO open(2), fclose(3C), fopen(3C), freopen(3C), fseek(3C), malloc(3C), rewind(3C), lf64(5)NOTES
Use of these functions should be restricted to applications written on BSD platforms. Use of these functions with any of the system
libraries or in multithreaded applications is unsupported.
To support the same number of open files as the system, fopen() must allocate additional memory for data structures using malloc(3C) after
64 files have been opened. This confuses some programs that use their own memory allocators.
The fopen() and freopen() functions differ from the standard I/O functions fopen(3C) and freopen(3C). The standard I/O functions distin-
guish binary from text files with an additional use of 'b' as part of the mode, enabling portability of fopen(3C) and freopen(3C) beyond
SunOS 4.x systems.
SunOS 5.10 22 Jan 1993 fopen(3UCB)