Sponsored Content
Full Discussion: File read/ write operation
Operating Systems Linux File read/ write operation Post 302427258 by Corona688 on Friday 4th of June 2010 10:55:01 AM
Old 06-04-2010
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
Code:
(i == inc && j<=100)

, make it
Code:
((i == inc) && (j<=100))

...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..
 

10 More Discussions You Might Find Interesting

1. IP Networking

how do you get to know if the write operation was succesful.

how do you get to know if the write operation for writing to a socket was succesful was succesful. (3 Replies)
Discussion started by: arjunjag
3 Replies

2. Shell Programming and Scripting

read and write from a file

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)
Discussion started by: rinku
2 Replies

3. UNIX for Dummies Questions & Answers

Simultaneous file read operation

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)
Discussion started by: chibob
5 Replies

4. UNIX for Dummies Questions & Answers

Write/read to file descriptors

Is it possible to write to file descriptor 0 and read from 1 or 2? How could this be implemented? (3 Replies)
Discussion started by: machshev
3 Replies

5. Solaris

monitoring multipath IO for read and write operation

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)
Discussion started by: sifaizan
0 Replies

6. IP Networking

read/write,write/write lock with smbclient fails

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)
Discussion started by: swatidas11
1 Replies

7. Shell Programming and Scripting

Transferring file write operation to another host

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)
Discussion started by: akhilonnet
1 Replies

8. Shell Programming and Scripting

Grab data between 2 keywords any do an array operation and write the file intact

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)
Discussion started by: naveen@
6 Replies

9. Shell Programming and Scripting

File Read and Write

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)
Discussion started by: Araoki
11 Replies

10. Shell Programming and Scripting

Read and write in the file

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
ttk::progressbar(n)						 Tk Themed Widget					       ttk::progressbar(n)

__________________________________________________________________________________________________________________________________________________

NAME
ttk::progressbar - Provide progress feedback SYNOPSIS
ttk::progressbar pathName ?options? _________________________________________________________________ DESCRIPTION
A ttk::progressbar widget shows the status of a long-running operation. They can operate in two modes: determinate mode shows the amount completed relative to the total amount of work to be done, and indeterminate mode provides an animated display to let the user know that something is happening. STANDARD OPTIONS
-class -cursor -takefocus -style See the ttk_widget manual entry for details on the standard options. WIDGET-SPECIFIC OPTIONS [-orient orient] One of horizontal or vertical. Specifies the orientation of the progress bar. [-length length] Specifies the length of the long axis of the progress bar (width if horizontal, height if vertical). [-mode mode] One of determinate or indeterminate. [-maxi- mum maximum] A floating point number specifying the maximum -value. Defaults to 100. [-value value] The current value of the progress bar. In determinate mode, this represents the amount of work completed. In indeterminate mode, it is interpreted modulo -maximum; that is, the progress bar completes one "cycle" when the -value increases by -maximum. [-variable variable] The name of a Tcl variable which is linked to the -value. If specified, the -value of the progress bar is automatically set to the value of the variable whenever the latter is modified. [-phase phase] Read-only option. The widget periodically increments the value of this option whenever the -value is greater than 0 and, in determinate mode, less than -maximum. This option may be used by the current theme to provide additional animation effects. WIDGET COMMAND
pathName cget option Returns the current value of the specified option; see ttk::widget(n). pathName configure ?option? ?value option value ...? Modify or query widget options; see ttk::widget(n). pathName identify x y Returns the name of the element at position x, y. See ttk::widget(n). pathName instate statespec ?script? Test the widget state; see ttk::widget(n). pathName start ?interval? Begin autoincrement mode: schedules a recurring timer event that calls step every interval milliseconds. If omitted, interval defaults to 50 milliseconds (20 steps/second). pathName state ?stateSpec? Modify or query the widget state; see ttk::widget(n). pathName step ?amount? Increments the -value by amount. amount defaults to 1.0 if omitted. pathName stop Stop autoincrement mode: cancels any recurring timer event initiated by pathName start. SEE ALSO
ttk::widget(n) Tk 8.5 ttk::progressbar(n)
All times are GMT -4. The time now is 06:16 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy