1) Start the process in the background and then using the 'fg' command bring it back to the foreground at the end of the script. i.e:
See the "wait" builtin command ("help wait" in bash). You could do
Quote:
2) Is there a way to bring a background process that is started by another shell (same user, or if I must use sudo I will) to the foreground of a different shell?
I don't think this is normally possible without being a debugger. However, it is possible to use screen to attach login sessions to different terminals. But based on what else you described, I don't think that's possible.
It might be in theory possible to use gdb to attach to a process and run a script of debugging commands, such as "b exit(); c ; p value[2]"
my shell is /sbin/sh. i added stty susp '^Z' with the intention of being able to switch between foreground and background. but the result was strange.
i had 2 servers. one is sun the os is 8 and the other is hpux v11. both of them had the same shell. but on hpux, it works perfectly fine while... (9 Replies)
I am using a telnet session (VT100) and need to modify my .profile so that it will set the color of the telnet session. I am not using Xterm (ie: can't use .Xdefaults). I am able to change the colors via menu's but need to preset in .profile. Is this possible??? Can't find anything at all on how... (3 Replies)
hi, i am just wondering that wen we give the following code we make a process run in background...can the viceversa be performed?i.e can this be made foreground again
# sleep 75&
21751
# (4 Replies)
I've tried this a long time ago and was successful but could not remember how i did it. Tried ctrl+Z and then used bg %
could not figure what i did after to keep it no hangup -
not sure if used nohup -p pid, can u plz help me out if this can be done.
Any help will be appreciated. (12 Replies)
What are all the difference between a Background and Foreground processes ?!
A Background process does not have access to STDIN and OUT.. What else ?
Is there any detailed description available somewhere ? (5 Replies)
I have many CPU intensive processes running and sometimes I run them in the foreground so that I can see what the output is.
I want to send that foreground process to the background, but also have it direct the output to a logfile.
I know to send something to the bg I do
Ctrl-z on the FG... (6 Replies)
What I need to learn is how to use a script that launches background processes, and then kills those processes as needed.
The script successfully launches the script. But how do I check to see if the job exists before I kill it?
I know my problem is mostly failure to understand parameter... (4 Replies)
Hi, guys:
I am working on my own shell using c. When I put a process into the background, how can I put it back to the foreground using tcsetpgrp?
Thanks (3 Replies)
Hi,
Need an urgent help. I have a program executing in foreground. I need to execute it in background and also to remove terminal dependency.
Thanks In advance.
116@434 (7 Replies)
Hi all,
I used the code given by cfajohnson on this forum to generate background colors for xterm.
Thanks cfajohnson... (sorry wasnt allowed to past the complete url)
n=200 ## adjust to taste: higher value, lighter background n1=$(( 256 - $n )) bg=$( printf "#%x%x%x\n" $(( $RANDOM % $n1 +... (2 Replies)
Discussion started by: carv_13
2 Replies
LEARN ABOUT OPENDARWIN
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.
IMPLEMENTATION NOTES
The SIGALRM signal is not handled specially by this implementation.
The sleep command will accept and honor a non-integer number of specified seconds (with a '.' character as a decimal point). This is a non-
portable extension, and its use will nearly guarantee that a shell script will not execute properly on another system.
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.
DIAGNOSTICS
The sleep utility exits 0 on success, and >0 if an error occurs.
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