10-05-2006
Inserting argument into top of a file
Hi,
I am new to Unix, and I am trying to append a line of argument into a current file. I need this line to be inserted into the very top of the file. Does anyone know how this is done?
For example, I am trying: echo "insert to top" >> filename. This inserts the line at the bottom of the file. How do I get it to insert to the top??
Please help!
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
when directing some text into a file can you choose where it goes like the top of the file (which is text aswell) or the middle??
if so how - especially would like to know how to do so in vi (text editor)
If i were to enter an argument ($1) into a another argument ($2)
would it would be... (6 Replies)
Discussion started by: rprules
6 Replies
2. Shell Programming and Scripting
Can someone please help me with this SHELL script?
I need to create a script that gets a positive number n as an argument. The script must calculate the factorial of its argument. In other words, it must calculate n!=1x2x3x...xn. Note that 0!=1.
Here is a start but I have no clue how to... (3 Replies)
Discussion started by: I-1
3 Replies
3. Programming
Could anyone help me with an efficient(and easy) way to insert data in a file directly(with out using temp file).
example
open the file1.txt
11112222
333333
44444444
and insert something say " 99999 " somewhere inside the file
as
11112222
333 99999 333
44444444 (2 Replies)
Discussion started by: johnbach
2 Replies
4. Shell Programming and Scripting
i had the following type of data file vchrdump:
Vouchers For Date :05/01/2009 * ... (4 Replies)
Discussion started by: KANNI786
4 Replies
5. Shell Programming and Scripting
Hi,
I have this line:
ip=111.222.133.144,mac=00:16:3E:2A:08:3C,vifname=veth360','ip=10.2.3.4,vifname=veth360a'
^
|
-------
I want to insert this IP 144.133.222.111 between "144"... (4 Replies)
Discussion started by: iga3725
4 Replies
6. Shell Programming and Scripting
If ($argv == “-debug”) then
Echo “in loop”
Endif
But this is not working. If I modify this code and remove “-“, then it works.
Similarly I am getting problem using grep command also
Grep “-debug” Filename
Can someone please help me on how to resolve these... (1 Reply)
Discussion started by: sarbjit
1 Replies
7. Shell Programming and Scripting
Hello,
Is there any method thorugh which script can take argument if pass otherwise if argument doesn't pass then it takes the argument from the configuration file
i.e I am workiing on a script which will run through crontab and the script will
chekout the code ,zip and copy to the... (3 Replies)
Discussion started by: rohit22hamirpur
3 Replies
8. HP-UX
Hello Mates,
I have one txt file having commo seperated values. I have to insert string "FALSE" in 2nd field from the end. E.G
SE18 6RN,,,,5439070,1786840,,1000002148671600,123434
Out put should be:
SE18 6RN,,,,5439070,1786840,FALSE,1000002148671600,123434
Can some one help me... (0 Replies)
Discussion started by: krsnadasa
0 Replies
9. Shell Programming and Scripting
Hi Forum members,
I want to insert the filename at the top of file (i.e, first row only)
My file name is like asdf_432
And I want to insert this filename in first row as filename is asdf with serial no. 432
Thanks in advance. :) (4 Replies)
Discussion started by: CAch
4 Replies
10. Shell Programming and Scripting
Hi,
I have one file with one column and several hundred entries
File1:
NA1
NA2
NA3And now I need to run a command within a mapping aligner tool to insert these sample names into a sequence alignment file (SAM) such that they look like this
@RG ID:Library1 SM:NA1 PL:Illumina ... (7 Replies)
Discussion started by: nans
7 Replies
LEARN ABOUT NETBSD
scrollok
CURSES_SCROLL(3) BSD Library Functions Manual CURSES_SCROLL(3)
NAME
curses_scroll, scrl, wscrl scroll, scrollok, setscrreg, wsetscrreg -- curses window scrolling routines
LIBRARY
Curses Library (libcurses, -lcurses)
SYNOPSIS
#include <curses.h>
int
scrl(int n);
int
wscrl(WINDOW *win, int n);
int
scroll(WINDOW *win);
int
scrollok(WINDOW *win, boolf flag);
int
setscrreg(int top, int bottom);
int
wsetscrreg(WINDOW *win, int top, int bottom);
DESCRIPTION
These functions scroll areas on stdscr or on the specified window.
The scrl() function scrolls stdscr by n lines. If n is positive then then stdscr is scrolled up. n lines are lost from the top of stdscr
and n blank lines are inserted at the bottom. If n is negative then stdscr is scrolled down. n blank lines are inserted at the top of
stdscr and n lines are lost from the bottom.
The wscrl() function is the same as the scrl() function, excepting that it scrolls the window specified by win.
The scroll() function scrolls the window win up by one line.
The scrolling behaviour of a window can be controlled by using the scrollok() function. If the flag argument is TRUE then a line wrap at the
bottom of the window will cause the window to be scrolled up one line, if flag is FALSE then lines that would force a scroll will be trun-
cated.
The setscrreg() function sets up a software scrolling region on stdscr which will define a region of the screen that will be scrolled. The
scrolling of this region is also controlled by the scrollok() function.
The wsetscrreg() function does the same as the setscrreg() function, except that the scrolling region is set on the window specified by win.
If a scrolling region has been set with the setscrreg() or wsetscrreg() functions and the current cursor position is inside the scrolling
region, then only the area inside the scrolling region is scrolled.
RETURN VALUES
Functions returning pointers will return NULL if an error is detected. The functions that return an int will return one of the following
values:
OK The function completed successfully.
ERR An error occurred in the function.
SEE ALSO
curses_deleteln(3), curses_insdelln(3), curses_insertln(3)
STANDARDS
The NetBSD Curses library complies with the X/Open Curses specification, part of the Single Unix Specification.
HISTORY
The Curses package appeared in 4.0BSD.
BSD
August 12, 2002 BSD