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Full Discussion: wait command
Top Forums Shell Programming and Scripting wait command Post 302301597 by jim mcnamara on Friday 27th of March 2009 11:47:08 AM
Old 03-27-2009
Embed the sqlplus behind a & then wait - stupid example:
Code:
 echo "
spool a.lis
select * from table1;
exit
" | sqlplus -s user/pass@dbname 2>&1 >/dev/null &

 echo "
spool b.lis
select * from table2;
exit
" | sqlplus -s user/pass@dbname 2>&1 >/dev/null &

wait

In order to prevent SIGTTOU signals, you have redirect stder and stdout to /dev/null or you can nohup the command
 

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NOHUP(1)							   User Commands							  NOHUP(1)

NAME
nohup - run a command immune to hangups, with output to a non-tty SYNOPSIS
nohup COMMAND [ARG]... nohup OPTION DESCRIPTION
Run COMMAND, ignoring hangup signals. --help display this help and exit --version output version information and exit If standard input is a terminal, redirect it from /dev/null. If standard output is a terminal, append output to 'nohup.out' if possible, '$HOME/nohup.out' otherwise. If standard error is a terminal, redirect it to standard output. To save output to FILE, use 'nohup COMMAND > FILE'. NOTE: your shell may have its own version of nohup, which usually supersedes the version described here. Please refer to your shell's doc- umentation for details about the options it supports. GNU coreutils online help: <http://www.gnu.org/software/coreutils/> Report nohup translation bugs to <http://translationproject.org/team/> AUTHOR
Written by Jim Meyering. COPYRIGHT
Copyright (C) 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. SEE ALSO
The full documentation for nohup is maintained as a Texinfo manual. If the info and nohup programs are properly installed at your site, the command info coreutils 'nohup invocation' should give you access to the complete manual. GNU coreutils 8.22 June 2014 NOHUP(1)
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