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Top Forums Shell Programming and Scripting Calling sqlplus from Korn shell heredoc issue Post 302884803 by Navin_Ramdhami on Wednesday 22nd of January 2014 01:31:10 AM
Old 01-22-2014
The script works fine with below changes. Temporary heredoc files are getting created and subsequently deleted for each DB call
Code:
#!/bin/ksh
get_app_status(){
eval `result=`sqlplus -s user/password@servicename <<EOF
whenever sqlerror exit sql.sqlcode
set escape off
set head off
set verify off
set feedback off
select param_value from status where param_name='app_status'
EOF
`
`
echo $result
}

while [ `get_app_status` = 'Started' ]; do
#Some logic here
done

 

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getusershell(3C)					   Standard C Library Functions 					  getusershell(3C)

NAME
getusershell, setusershell, endusershell - get legal user shells SYNOPSIS
#include <unistd.h> char *getusershell(void); void setusershell(void); void endusershell(void); DESCRIPTION
The getusershell() function returns a pointer to a legal user shell as defined by the system manager in the file /etc/shells. If /etc/shells does not exist, the following locations of the standard system shells are used in its place: /bin/bash /bin/csh /bin/jsh /bin/ksh /bin/pfcsh /bin/pfksh /bin/pfsh /bin/sh /bin/tcsh /bin/zsh /sbin/jsh /sbin/pfsh /sbin/sh /usr/bin/bash /usr/bin/csh /usr/bin/jsh /usr/bin/ksh /usr/bin/pfcsh /usr/bin/pfksh /usr/bin/pfsh /usr/bin/sh /usr/bin/tcsh /usr/bin/zsh /usr/xpg4/bin/sh The getusershell() function opens the file /etc/shells, if it exists, and returns the next entry in the list of shells. The setusershell() function rewinds the file or the list. The endusershell() function closes the file, frees any memory used by getusershell() and setusershell(), and rewinds the file /etc/shells. RETURN VALUES
The getusershell() function returns a null pointer on EOF. BUGS
All information is contained in memory that may be freed with a call to endusershell(), so it must be copied if it is to be saved. SunOS 5.10 30 Aug 2004 getusershell(3C)
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