07-19-2011
several command in background
hi everyone!
I would like to know if someone can tell me how to run several command in background on one line.
I already tried thisi:
cmd1 &; cmd2 &; cmd3 &
--->produce an error syntax
cmd1 ; cmd2 ; cmd3 &
--->don't execute in bg
cmd1 & cmd2 & cmd3 &
--->execute asynchronously (cmd3 finish before cmd2)
THANKS IN ADVANCE!!!
Je vais peut-être me rabatre sur la création d'un script qui contiendra mas commandes, et j'executerais ce script en bg..
C'est chiant mais si il n'existe pas d'autres soluces
9 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
For example:
% ls /store > list.txt
% less list.txt
% 1.txt
% 2.txt
I want to execute 'ls' in verbose and store the result in background to 'list.txt' so i dont have to execute another command just to view the contents of the 'list.txt'
% ls /store > list.txt
% 1.txt
% 2.txt
%... (2 Replies)
Discussion started by: jehrome_rando
2 Replies
2. UNIX for Dummies Questions & Answers
I have a command running in the foreground (and so my term window is locked up) and I want to kill it, then resume it in the background and go home. It is creating a zip file, and the file will be written to the current directory - no std in / std out issues.
How do I do this? Kill it with a... (3 Replies)
Discussion started by: hindesite
3 Replies
3. AIX
Guys
I'm working to make in AIX script and I have some commands need to be excited by that script
Like the below commands ...
startsrc -s sshd
I want that executing to be in the background of the system I do not like to see the out put of that (3 Replies)
Discussion started by: Mr.AIX
3 Replies
4. Shell Programming and Scripting
Hi ,
I want to see all the background process that are running in unix box machine...please guide me is there any specific command for that..since I am executing some scripts at background..!!:confused: (1 Reply)
Discussion started by: nks342
1 Replies
5. Shell Programming and Scripting
Dear All,
Writing a script in which I want to run a command in background and keep it running even script is finished.
I have tried like below,
`truss -p <pid> >> & /tmp/log &`
But doesnt work.. script goes running and nothing in log file. (7 Replies)
Discussion started by: Deei
7 Replies
6. Solaris
hi all
i am running following command
ufsdump 0ubf 512 /dev/rmt/0cbn /database/backup2/rman_backup/level1 >> /database/backup2/backup_tape/level1_rman_03aug12 2>&1;
i want to run it in background how can i do it
in this i am generating logs for backup.
the problem occurs when i am... (3 Replies)
Discussion started by: nikhil kasar
3 Replies
7. Shell Programming and Scripting
Is there any way to trigger a sequence of commands in parallel and capture their output in variables? e.g. something on the following lines
x=`echo "X" &`
y=`echo "Y" &`
z=`echo "Z" &`
so that $x, $y, and $z evaluate to X, Y and Z res. (7 Replies)
Discussion started by: jawsnnn
7 Replies
8. Linux
Hi All,
i am trying to put ls -lRt command to run in the background but it fails.
i continue to get output on screen and didnt get the command prompt right after i put the command in background.
command i am using is
ls -lRt &
i am using bash.
Can someone let me know how to... (6 Replies)
Discussion started by: omkar.jadhav
6 Replies
9. UNIX for Dummies Questions & Answers
I am trying to run a command. This is one of my attempts:
for i in fileservera; do ssh -t $i 'sudo ls /';doneThis works, and I see the directories. However, what I want to do now is start a process on the remote server such as /usr/bin/connectproc -standalonesudo /usr/bin/connectproc... (1 Reply)
Discussion started by: newbie2010
1 Replies
LEARN ABOUT MOJAVE
tcl_backgrounderror
Tcl_BackgroundError(3) Tcl Library Procedures Tcl_BackgroundError(3)
__________________________________________________________________________________________________________________________________________________
NAME
Tcl_BackgroundError - report Tcl error that occurred in background processing
SYNOPSIS
#include <tcl.h>
Tcl_BackgroundError(interp)
ARGUMENTS
Tcl_Interp *interp (in) Interpreter in which the error occurred.
_________________________________________________________________
DESCRIPTION
This procedure is typically invoked when a Tcl error occurs during "background processing" such as executing an event handler. When such
an error occurs, the error condition is reported to Tcl or to a widget or some other C code, and there is not usually any obvious way for
that code to report the error to the user. In these cases the code calls Tcl_BackgroundError with an interp argument identifying the
interpreter in which the error occurred. At the time Tcl_BackgroundError is invoked, the interpreter's result is expected to contain an
error message. Tcl_BackgroundError will invoke the command registered in that interpreter to handle background errors by the interp bger-
ror command. The registered handler command is meant to report the error in an application-specific fashion. The handler command receives
two arguments, the result of the interp, and the return options of the interp at the time the error occurred. If the application registers
no handler command, the default handler command will attempt to call bgerror to report the error. If an error condition arises while
invoking the handler command, then Tcl_BackgroundError reports the error itself by printing a message on the standard error file.
Tcl_BackgroundError does not invoke the handler command immediately because this could potentially interfere with scripts that are in
process at the time the error occurred. Instead, it invokes the handler command later as an idle callback.
It is possible for many background errors to accumulate before the handler command is invoked. When this happens, each of the errors is
processed in order. However, if the handle command returns a break exception, then all remaining error reports for the interpreter are
skipped.
KEYWORDS
background, bgerror, error, interp
Tcl 7.5 Tcl_BackgroundError(3)