12-23-2008
am a newbie to unix. plz help in understanding this code.
hi everybody.
please help me in understanding this code.
echo "************* starting job on `date +\"%d/%m/%Y at %T\"` **************"
#
scriptdir=`dirname $0`
. ${scriptdir}/env_params.sh
#
SHLIB_PATH=${ORACLE_HOME}/lib:
export SHLIB_PATH
export LD_LIBRARY_PATH=${ORACLE_HOME}/lib:/usr/lib
export NLS_LANG=AMERICAN_AMERICA.US7ASCII
BDIR=${hotbackupdir}/`date +%a`
export BDIR
#if instance is not running, abandon
ps -aef | grep pmon_${ORACLE_SID} | grep -v grep > /tmp/check_sid
if [ -s /tmp/check_sid ]
then
echo ' '
echo "**** ${ORACLE_SID} instance is running, hot backup will be run ****"
echo ' '
else
echo "**** ERROR! ${ORACLE_SID} instance is not running, hot backup will not be run ****"
exit 1
fi
cat /tmp/check_sid > /tmp/hb.log
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echo(3XCURSES) X/Open Curses Library Functions echo(3XCURSES)
NAME
echo, noecho - enable/disable terminal echo
SYNOPSIS
cc [ flag... ] file... -I /usr/xpg4/include -L /usr/xpg4/lib
-R /usr/xpg4/lib -lcurses [ library... ]
c89 [ flag... ] file... -lcurses [ library... ]
#include <curses.h>
int echo(void);
int noecho(void);
DESCRIPTION
The echo() function enables Echo mode for the current screen. The noecho() function disables Echo mode for the current screen. Initially,
curses software echo mode is enabled and hardware echo mode of the tty driver is disabled. The echo() and noecho() functions control soft-
ware echo only. Hardware echo must remain disabled for the duration of the application, else the behavior is undefined.
RETURN VALUES
Upon successful completion, these functions return OK. Otherwise, they return ERR.
ERRORS
No errors are defined.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
|MT-Level |Unsafe |
+-----------------------------+-----------------------------+
SEE ALSO
getch(3XCURSES), getstr(3XCURSES), initscr(3XCURSES), libcurses(3XCURSES), scanw(3XCURSES), attributes(5), standards(5)
SunOS 5.10 5 Jun 2002 echo(3XCURSES)