The simple method is to add a check for ever piece of code that might output data. But if you rely on a sub-process that might never return, this doesn't work too well.
The complex method is to set up a timer and trap the timer with something that outputs to the screen. The trap can check a variable before printing; that variable is reset every time there is output.
I have to look through logfiles where lines are several hundred characters long and if I open the log in Vi it automatically word wraps the line. In Vim you can use the -nowrap option to stop this, but how can you do this in Vi?
I ask because I don't want to see the whole line, just the first few... (8 Replies)
Hello all I am a unix newbie....
I have a sun netra t1 and it is freaking out
I am connected to it through a console port, and it is just spitting out a ton on numbers and letters like below its just keeps going and going.
I have tried rebooting it and I cannot get it back to any kind of a... (1 Reply)
Hello,
I am using poderosa to open a terminal in an aix box.
The problem is when i use a sudo, the vi scroll doesnt work properly,
It will scroll through the first page, but when it reaches the end, only the last line scrolls, not the whole screen, making it hard to read and work.
Its like... (1 Reply)
hi,
can anyone tell me how to enable arrow keys to scroll thru the commands on command prompt.
I am using C shell ( I know, in k shell, set -o vi would enable vi command history, but set -o doesnte exist in c shell) (4 Replies)
Perderabo *
Unix Daemon
*
Join Date: Aug 2001
Location: Ashburn, Virginia
Posts: 9,071
Using head and tail like that is terribly inefficient. I decided to try a rewrite. Sheesh...I spent all morning on this....
Code:
#! /usr/bin/ksh
#
# scroller --- display text, but sleep every... (0 Replies)
Hi All,
I have the following script and would like to add page up and down functionality to be able to stroll through the list.
Is this possible?
If so, Any pointers to examples, info, tips, suggestions would be appreciated.
BTW, Any suggestion for better practices on the following code... (5 Replies)
i have 2 cursors. i want to assign the value of first cursor(employee_id) to the where condition of cursor c2(please refer the bold statement).
how do i do if i want to assign the value of c1 to where condition of cursor c2?
declare
cursor c1 IS
select employee_id from employee
cursor c2... (1 Reply)
When I enter Solaris mail command, I get many emails on the screen on scrolling. How can I get it in one by one. BTW, if I delete the long list of emails by d command at the end, rest of the emails comes in one after other :rolleyes:
Thanks... (0 Replies)
Hi all,
I am trying write a shell script to automate the installation of a program, but during the process of the installation, the installation program requires the user to scroll through 10 pages of a license agreement. Since this is coming from stdout and is not a prompt, I am unable to send... (4 Replies)
Discussion started by: nanlee
4 Replies
LEARN ABOUT SUSE
sleep
SLEEP(3) Linux Programmer's Manual SLEEP(3)NAME
sleep - Sleep for the specified number of seconds
SYNOPSIS
#include <unistd.h>
unsigned int sleep(unsigned int seconds);
DESCRIPTION
sleep() makes the calling thread sleep until seconds seconds have elapsed or a signal arrives which is not ignored.
RETURN VALUE
Zero if the requested time has elapsed, or the number of seconds left to sleep, if the call was interrupted by a signal handler.
CONFORMING TO
POSIX.1-2001.
BUGS
sleep() may be implemented using SIGALRM; mixing calls to alarm(2) and sleep() is a bad idea.
Using longjmp(3) from a signal handler or modifying the handling of SIGALRM while sleeping will cause undefined results.
SEE ALSO alarm(2), nanosleep(2), signal(2), signal(7)COLOPHON
This page is part of release 3.25 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
GNU 2010-02-03 SLEEP(3)