11-20-2008
Check SSH Connection .. help ..
I've script where i check connection to many hosts ... it take input from HOSTLIST.txt
Ex. cat HOSTLIST.txt
host1
host2
while read HOSTNAME
do
echo $HOSTNAME
ssh -o "BatchMode=yes" ${HOSTNAME} "echo 2>&1" $$ echo flag=0 || flag=1;
if [ $? -ne 0 ]; then
echo "No SSH Connection" >> ${LOG}
else
echo " SSH Connection Good " >> ${LOG}
fi
done < HOSTLIST.txt
Problem is it processes host1 successfully and breaks before even it checks for host2
+ read HOSTNAME
+ ssh -o BatchMode=yes host1 echo 2>&1 2701 echo flag=0
2701 echo flag=0
+ [ 0 -ne 0 ]
+ echo SSH Connection Good
+ 1>> logfile.log
+ read HOSTLIST.txt
this is all i get from set -x mode ....
any ideas why its breaking ?
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LEARN ABOUT OPENSOLARIS
noecho
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 5.11 5 Jun 2002 echo(3XCURSES)