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UNIX for Dummies Questions & Answers
no screen output
Post 302089127 by wisher115 on Sunday 17th of September 2006 11:25:16 AM
09-17-2006
no screen output
I'm a newbie.
I'm having a problem at work with a script. What i'm trying to do is connect to a cisco switch from a sun station. After i run the script and telnet into the switch i don't get any output on the "xterm window" and all my commands from the script don't show up on the screen or on the saved file. If i hit the return on the keyboard those carriage returns show up in the file saved. It's also a pain to get out of the telnet session.
Are my commands not showing up because i'm leaving the sun station and the script connection is lost?
Here's my script:
#!/bin/ksh
telnet $switch_ip $port >saved_file
pause 2 or sleep 2 <---- i don't remember.
#I've typed these below and nothing shows up when the file is saved.
type "type\n"
send "send\n"
sende "sende\n"
print "print\n"
echo "echo\n"
I'm having a problem at work with a script. What i'm trying to do is connect to a cisco switch from a sun station. After i run the script and telnet into the switch i don't get any output on the "xterm window" and all my commands from the script don't show up on the screen or on the saved file. If i hit the return on the keyboard those carriage returns show up in the file saved. It's also a pain to get out of the telnet session.
Are my commands not showing up because i'm leaving the sun station and the script connection is lost? Here's my script:
#!/bin/ksh
telnet $switch_ip $port >saved_file
pause 2 or sleep 2 <---- i don't remember.
#I've typed these below and nothing shows up when the file is saved.
type "type\n"
send "send\n"
sende "sende\n"
print "print\n"
echo "echo\n"
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LEARN ABOUT CENTOS
telnet-probe
TELNET-PROBE(1) General Commands Manual TELNET-PROBE(1) NAME
telnet-probe - lightweight telnet-like port probe SYNOPSIS
$PCP_BINADM_DIR/telnet-probe [-c] [-v] host port DESCRIPTION
telnet-probe allows the pmdashping(1) daemons to establish connections to arbitrary local and remote service-providing daemons so that response time and service availability information can be obtained. The required host and port number arguments have the same meaning as their telnet(1) equivalents. The -c option causes telnet-probe to perform a connect(2) only. This skips the read(2) and write(2) exercise that would otherwise be done after connecting (see below). The -v option causes telnet-probe to be verbose while operating. Once the telnet connection has been established, telnet-probe reads from stdin until end-of-file, and writes all the input data to the tel- net connection. Next, telnet-probe will read from the telnet connection until end-of-file, discarding whatever data it receives. Then telnet-probe exits. To operate successfully, the input passed via telnet-probe to the remote service must be sufficient to cause the remote service to close the connection when the last line of input has been processed, e.g. ending with ``quit'' when probing SMTP on port 25. By default telnet-probe will not produce any output, unless there is an error in which case a diagnostic message can be displayed (in ver- bose mode only) and the exit status will be non-zero indicating a failure. PCP ENVIRONMENT
Environment variables with the prefix PCP_ are used to parameterize the file and directory names used by PCP. On each installation, the file /etc/pcp.conf contains the local values for these variables. The $PCP_CONF variable may be used to specify an alternative configura- tion file, as described in pcp.conf(5). DIAGNOSTICS
If telnet-probe succeeds, then 0 will be returned. If the attempt to establish a connection fails or is terminated, then a non-zero exit status is returned. SEE ALSO
PCPintro(1), pmdashping(1), pmie(1), telnet(1), connect(2), read(2) and write(2). Performance Co-Pilot PCP TELNET-PROBE(1)