I will assume you want to change the header but keep the rest of the 30 million lines. Since the new header has the same length, the following will open file for both reading and writing:
This will be very fast and replace the file in place. Be careful.
Hello,
Does changing a header in a shared library under Solaris (say adding a new class data member) will result in not only compiling that library but all of the libraries that depend on that lib that was changed because of the change in the object's size? What about adding a virtual function?... (0 Replies)
I have a log file that is about 1.2 million lines long and about 300MB.
we need a way to clean up this file and only keep the last few thousand lines.
if i use tail command we run our of memory as the file is too big.
I do have a key word to match on.
example, we want to keep every line... (8 Replies)
awk -F ";" '{if($10>80 && NR>1) print $0 }' txt_file_*
I am using this command to print the lines which has 10th field more then 80 and leaving the first line of the file which is the header.
But this is not working , the first line is is coming as output , please correct me .
thanks (2 Replies)
How can i tweak sendmail configuration files so that the "Received:" field is removed from email header information?
Or else can i change Received: (from enswitch@localhost) in email header to something likeReceived: (from xyz@localhost)?
---------- Post updated at 09:57 PM ---------- Previous... (2 Replies)
Hi,
I need a help in creating a report file.
The input file is like this
1 A
2 B
3 V
4 X
5 m
6 O
7 X
8 p
9 a
10 X
There is a header which i have to print & save the result as a output file.
The header has multiple lines on is like say:
New New
S.No Name (15 Replies)
Dear All,
I have two files both containing 10 Million records each separated by comma(csv fmt).
One file is input.txt other is status.txt.
Input.txt-> contains fields with one unique id field (primary key we can say)
Status.txt -> contains two fields only:1. unique id and 2. status
... (8 Replies)
these are numeric ids..
222932017099186177
222932014385467392
222932017371820032
222932017409556480
I have text file having 300 millions of line as shown above. I want to find duplicates from this file. Please suggest the quicker way..
sort | uniq -d will... (3 Replies)
HI ,
i have to print the first header of df -h (Filesystem Size Used Avail Use% Mounted on)and line which conatin size Network path only.
Filesystem Size Used Avail Use% Mounted on
/test/sda3 35G 1.8G 32G 6% /
/test/sda10 7.8G 1.1G ... (3 Replies)
I've been struggling with this one for quite a while and cannot seem to find a solution for this find/replace scenario. Perhaps I'm getting rusty.
I have a file that contains a number of metrics (exactly 3 fields per line) from a few appliances that are collected in parallel. To identify the... (3 Replies)
Discussion started by: verdepollo
3 Replies
LEARN ABOUT OSF1
wscrl
curs_scroll(3) Library Functions Manual curs_scroll(3)NAME
curs_scroll, scroll, scrl, wscrl - Scroll a Curses window
SYNOPSIS
#include <curses.h>
int scroll(
WINDOW *win ); int scrl(
int n ); int wscrl(
WINDOW *win,
int n );
LIBRARY
Curses Library (libcurses)
STANDARDS
Interfaces documented on this reference page conform to industry standards as follows:
scrl, wscrl, scroll: XCURSES4.2
Refer to the standards(5) reference page for more information about industry standards and associated tags.
DESCRIPTION
The scroll routine scrolls the window up one line. This involves moving the lines in the window data structure. As an optimization, if the
scrolling region of the window is the entire screen, the physical screen is scrolled at the same time.
The scrl and wscrl routines, for positive n, scroll the current or specified window up n lines (line i+n becomes line i); otherwise, these
routines scroll the window down n lines. This operation involves moving the lines in the window character-image structure. The routines do
not change the current cursor position.
For the scroll, scrl, and wscrl functions to work, the scrollok option must be enabled.
NOTES
The header file <curses.h> automatically includes the header file <stdio.h>.
Note that scrl may be a macro.
RETURN VALUES
All routines return the integer ERR upon failure and OK upon successful completion.
SEE ALSO
Functions: curses(3), curs_outopts(3)
Others: standards(5)curs_scroll(3)