Sponsored Content
Top Forums Programming Can we use write() to modify/update intermediate records in a file Post 302132041 by maverix on Wednesday 15th of August 2007 02:26:43 AM
Old 08-15-2007
Hi porter,

Thank you for your inputs.

It was a simple mistake from my side.
I had copied the functions and forgot to change the parameter in the open system call from O_RDONLY to O_RDWR.

Upon seeing your reply, I realised my mistake.

Thanks for your reply.

Regards
maverix
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Count No of Records in File without counting Header and Trailer Records

I have a flat file and need to count no of records in the file less the header and the trailer record. I would appreciate any and all asistance Thanks Hadi Lalani (2 Replies)
Discussion started by: guiguy
2 Replies

2. Shell Programming and Scripting

Help needed in removing intermediate segments from a pipe delimited segment file

Hi, I just stuckup in doing some regular expressions on a file. I have data which has multiple FHS and BTS segments like: FHS|12121|LOCAL|2323 MSH|10101|POTAMAS|2323 PID|121221|THOMAS|DAVID|23432 OBX|2342|H1211|3232 BTS|0000|MERSTO|LIABLE FHS|12121|LOCAL|2323 MSH|10101|POTAMAS|2323... (3 Replies)
Discussion started by: naren_0101bits
3 Replies

3. UNIX for Advanced & Expert Users

unix script for update or insert records from a file to a oracle table

Hi, I have delimited file(|). Sample data: 1|name|50009|DS24|0|12 2|name|30009|DS24|0|13 3|name|20409|DS24|0|14 4|name|20009|DS24|0|15 5|name|10009|DS24|0|16 I want to load this data into a oracle table (update and insert) Please help me the commands and also... (1 Reply)
Discussion started by: unihp1
1 Replies

4. UNIX for Dummies Questions & Answers

update records in a file using shell script...

Hi, I have a file with 6 columns. First 3 columns together make unique record. I have a variable ($v) which hold a value that is obtained by a caliculaion. I have to replace value in 5th columnn with the value of the variable ($v). The value $v is caliculated from col4 and col6 values. ... (2 Replies)
Discussion started by: new_learner
2 Replies

5. Shell Programming and Scripting

insert a header in a huge data file without using an intermediate file

I have a file with data extracted, and need to insert a header with a constant string, say: H|PayerDataExtract if i use sed, i have to redirect the output to a seperate file like sed ' sed commands' ExtractDataFile.dat > ExtractDataFileWithHeader.dat the same is true for awk and... (10 Replies)
Discussion started by: deepaktanna
10 Replies

6. Shell Programming and Scripting

Push records to array during implicit loop and write to file

NEWBIE ALERT! Hi, I'm 1 month into learning Perl and done reading "Minimal Perl" by Tim Maher (which I enjoyed enoumously). I'm not a programmer by profession but want to use Perl to automate various tasks at my job. I have a problem (obviously) and are looking for your much appreciated help.... (0 Replies)
Discussion started by: jospan
0 Replies

7. Linux

Suggest update of two commands - who to write to?

I think it's about time the df and du commands (executables?) were updated to display gigabyte units without one having to do their own calculations from the -m option (display in megabytes). This is one of those "little nothing" annoyances that, at the same time, would positively show new... (3 Replies)
Discussion started by: SilversleevesX
3 Replies

8. UNIX for Dummies Questions & Answers

Grep specific records from a file of records that are separated by an empty line

Hi everyone. I am a newbie to Linux stuff. I have this kind of problem which couldn't solve alone. I have a text file with records separated by empty lines like this: ID: 20 Name: X Age: 19 ID: 21 Name: Z ID: 22 Email: xxx@yahoo.com Name: Y Age: 19 I want to grep records that... (4 Replies)
Discussion started by: Atrisa
4 Replies

9. Shell Programming and Scripting

Deleting duplicate records from file 1 if records from file 2 match

I have 2 files "File 1" is delimited by ";" and "File 2" is delimited by "|". File 1 below (3 record shown): Doc1;03/01/2012;New York;6 Main Street;Mr. Smith 1;Mr. Jones Doc2;03/01/2012;Syracuse;876 Broadway;John Davis;Barbara Lull Doc3;03/01/2012;Buffalo;779 Old Windy Road;Charles... (2 Replies)
Discussion started by: vestport
2 Replies

10. Shell Programming and Scripting

Remove duplicated records and update last line record counts

Hi Gurus, I need to remove duplicate line in file and update TRAILER (last line) record count. the file is comma delimited, field 2 is key to identify duplicated record. I can use below command to remove duplicated. but don't know how to replace last line 2nd field to new count. awk -F","... (11 Replies)
Discussion started by: green_k
11 Replies
xcb_randr_get_crtc_gamma(3)					   XCB Requests 				       xcb_randr_get_crtc_gamma(3)

NAME
xcb_randr_get_crtc_gamma - SYNOPSIS
#include <xcb/randr.h> Request function xcb_randr_get_crtc_gamma_cookie_t xcb_randr_get_crtc_gamma(xcb_connection_t *conn, xcb_randr_crtc_t crtc); Reply datastructure typedef struct xcb_randr_get_crtc_gamma_reply_t { uint8_t response_type; uint8_t pad0; uint16_t sequence; uint32_t length; uint16_t size; uint8_t pad1[22]; } xcb_randr_get_crtc_gamma_reply_t; Reply function xcb_randr_get_crtc_gamma_reply_t *xcb_randr_get_crtc_gamma_reply(xcb_connection_t *conn, xcb_randr_get_crtc_gamma_cookie_t cookie, xcb_generic_error_t **e); Reply accessors uint16_t *xcb_randr_get_crtc_gamma_red(const xcb_randr_get_crtc_gamma_request_t *reply); int xcb_randr_get_crtc_gamma_red_length(const xcb_randr_get_crtc_gamma_reply_t *reply); xcb_generic_iterator_t xcb_randr_get_crtc_gamma_red_end(const xcb_randr_get_crtc_gamma_reply_t *reply); uint16_t *xcb_randr_get_crtc_gamma_green(const xcb_randr_get_crtc_gamma_request_t *reply); int xcb_randr_get_crtc_gamma_green_length(const xcb_randr_get_crtc_gamma_reply_t *reply); xcb_generic_iterator_t xcb_randr_get_crtc_gamma_green_end(const xcb_randr_get_crtc_gamma_reply_t *reply); uint16_t *xcb_randr_get_crtc_gamma_blue(const xcb_randr_get_crtc_gamma_request_t *reply); int xcb_randr_get_crtc_gamma_blue_length(const xcb_randr_get_crtc_gamma_reply_t *reply); xcb_generic_iterator_t xcb_randr_get_crtc_gamma_blue_end(const xcb_randr_get_crtc_gamma_reply_t *reply); REQUEST ARGUMENTS
conn The XCB connection to X11. crtc TODO: NOT YET DOCUMENTED. REPLY FIELDS
response_type The type of this reply, in this case XCB_RANDR_GET_CRTC_GAMMA. This field is also present in the xcb_generic_reply_t and can be used to tell replies apart from each other. sequence The sequence number of the last request processed by the X11 server. length The length of the reply, in words (a word is 4 bytes). size TODO: NOT YET DOCUMENTED. DESCRIPTION
RETURN VALUE
Returns an xcb_randr_get_crtc_gamma_cookie_t. Errors have to be handled when calling the reply function xcb_randr_get_crtc_gamma_reply. If you want to handle errors in the event loop instead, use xcb_randr_get_crtc_gamma_unchecked. See xcb-requests(3) for details. ERRORS
This request does never generate any errors. SEE ALSO
AUTHOR
Generated from randr.xml. Contact xcb@lists.freedesktop.org for corrections and improvements. XCB
2014-06-10 xcb_randr_get_crtc_gamma(3)
All times are GMT -4. The time now is 02:24 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy