I would really like to have a script that will accept the key press from the user with out having to press the enter key afterwards.
i.e.
echo "Press Y to print \c"
read YesNo
At this point the user has to press the enter key to continue. Is there a way to accept the key press from the... (3 Replies)
I am trying to test input from the user, if they press enter with out an Y or N. I have the characheter thing sorted but when it comes to a blank or empty key press I am having trouble.
if ; then
clear
echo "Sorry, that is an invalid choice!"
exit
fi
I am using a KSH script in... (3 Replies)
How can I trap a character press in the shell script.
For eg:- I have a script runinng a infinite loops , I will need to quit if q is pressed.
I have seen the traping the signal , but they give option only for traping the defined interrupt signals. But those does not help me here. (3 Replies)
Guy's
I want to make script to run this command solevel every Saturday at 8:00 clock exactly .
Can you please help me and teach me how to do this ... (9 Replies)
Hi all!
I have written a shell script which will invoke perl script infinitly in the background in a loop. Code will do as:Within while loop, perl script will be run in background, get the pid and notify pid in though mail. then wait for pid to be completed before going for next iteration. I am... (1 Reply)
Hi,
I have more that 100 jobs I can run background, if I want only 4 running at ther same time, how can I write a script to control it?
Thanks
peter (0 Replies)
Hi,
Is there a command to print one character x amont of times?
I need for example 10 comma's (,,,,,,,,,,). Instead of creating a loop, I was wondering if there is a way to do this with sed or awk?
Thanks! (3 Replies)
hi to all.
im a newbie in unix shell scripts. i want to make a simple unix shell script using the bash shell that asks a user to press any key after a series of commands, or an x if he wishes to exit. here's a sample script that i made:
#!/usr/bin/bash
pause(){
/usr/bin/echo "\t\t Press... (3 Replies)
I want to detect key pressed in my .cgi web page, but it does not work even I found the code in other web site.
My code is :
#!/bin/sh
#=================================================
# PATH defination
# ================================================... (2 Replies)
Hello All,
I have written a script which which is working fine to a certain logic of it. But i want a part of the script to run two commands at 00:10 hrs every day. These two command are
1. rm -rf /path/to/folder
2. mail the content of a file.
How do i achieve this. Thanks.
... (4 Replies)
Discussion started by: Siddheshk
4 Replies
LEARN ABOUT FREEBSD
sleep
SLEEP(1) BSD General Commands Manual SLEEP(1)NAME
sleep -- suspend execution for an interval of time
SYNOPSIS
sleep seconds
DESCRIPTION
The sleep command suspends execution for a minimum of seconds.
If the sleep command receives a signal, it takes the standard action. When the SIGINFO signal is received, the estimate of the amount of
seconds left to sleep is printed on the standard output.
IMPLEMENTATION NOTES
The SIGALRM signal is not handled specially by this implementation.
The sleep command allows and honors a non-integer number of seconds to sleep in any form acceptable by strtod(3). This is a non-portable
extension, and its use will nearly guarantee that a shell script will not execute properly on another system.
EXIT STATUS
The sleep utility exits 0 on success, and >0 if an error occurs.
EXAMPLES
To schedule the execution of a command for x number seconds later (with csh(1)):
(sleep 1800; sh command_file >& errors)&
This incantation would wait a half hour before running the script command_file. (See the at(1) utility.)
To reiteratively run a command (with the csh(1)):
while (1)
if (! -r zzz.rawdata) then
sleep 300
else
foreach i (`ls *.rawdata`)
sleep 70
awk -f collapse_data $i >> results
end
break
endif
end
The scenario for a script such as this might be: a program currently running is taking longer than expected to process a series of files, and
it would be nice to have another program start processing the files created by the first program as soon as it is finished (when zzz.rawdata
is created). The script checks every five minutes for the file zzz.rawdata, when the file is found, then another portion processing is done
courteously by sleeping for 70 seconds in between each awk job.
SEE ALSO nanosleep(2), sleep(3)STANDARDS
The sleep command is expected to be IEEE Std 1003.2 (``POSIX.2'') compatible.
HISTORY
A sleep command appeared in Version 4 AT&T UNIX.
BSD April 18, 1994 BSD
05-17-2015
