your problem is that you are sending the text "df -k ." into the tail |cut pipeline, and the return from that is an empty string. If you wanted to assign the output to a variable just do:
or replace the $() with backticks
I'm need to connect to another host in a script using the telnet command. How do I pass the login and password to be able to connect to the other host from within the script? (10 Replies)
Hi,
How to write a script to perform telnet/ftp operation.
Also please refer some site to get reference about shell scripting.
Thanks in advance
-Arun. (1 Reply)
I am trying to use telnet in shell script but getting following error
error
Connected to crmapp00.agf.ca.
Escape character is '^]'.
Connection closed by foreign host.
Script
#!/bin/ksh
PATH=/usr/sbin/:/usr/bin:/usr/ucb:/etc:/usr/local/bin:.
telnet HOSTNAME <<SCRIPT
user userid... (9 Replies)
Hi All,
I was trying to use telnet in a script to access a certain processor on a certain port to view some processes. The problem is that when I use telnet the output is displayed for me.
The script is:
#!/bin/sh
cd /ahmed/ezzat/
rm ss7trace.log
touch ss7trace.log
chmod 755... (3 Replies)
Hi Guys,
How do I write the script for the following
telnet 192.168.1.100 9002
if the result is less than 1 second. The script should say as port open
if the result takes more than 3 seconds. The script should display as port closed.
Thanks,
Charan (1 Reply)
Hi all,
I would like to write a ad hoc shell script that would allow me to do some telnet tests to multiple IP's and ports at the same time . So, I want to determine which one is successful and which one fails. So, basically I would like the shell to spawn the telnet test and to break out of... (3 Replies)
Hi,
I need a script that take one parameter as destination hostname and two parameter as ranges and tries telnet and records the successful connections.
fo reg:
./testtelnet.sh destination-host 1000 1050
should give me all the port between 1000 and 1050 what successfully connected to... (10 Replies)
Hello,
I wrote a script for doing telnet.However the requirement got changed and now I have to write a telnet script that will
1. Do the telnet from all the virtual ips in a box(Ex: x.x.x.x is the box ip, and x.x.x.1,x.x.x.2 etc are virtual ips associated with that box.)
2. The port range... (0 Replies)
Hello,
I wrote a script for doing telnet.However the requirement got changed and now I have to write a telnet script that will
1. Do the telnet from all the virtual ips in a box(Ex: x.x.x.x is the box ip, and x.x.x.1,x.x.x.2 etc are virtual ips associated with that box.)
2. The port range... (3 Replies)
Discussion started by: coolkid
3 Replies
LEARN ABOUT CENTOS
systemd-hibernate.service
SYSTEMD-SUSPEND.SERVICE(8) systemd-suspend.service SYSTEMD-SUSPEND.SERVICE(8)NAME
systemd-suspend.service, systemd-hibernate.service, systemd-hybrid-sleep.service, systemd-sleep - System sleep state logic
SYNOPSIS
systemd-suspend.service
systemd-hibernate.service
systemd-hybrid-sleep.service
/usr/lib/systemd/systemd-sleep
DESCRIPTION
systemd-suspend.service is a system service that is pulled in by suspend.target and is responsible for the actual system suspend.
Similarly, systemd-hibernate.service is pulled in by hibernate.target to execute the actual hibernation. Finally,
systemd-hybrid-sleep.service is pulled in by hybrid-sleep.target to execute hybrid hibernation with system suspend.
Immediately before entering system suspend and/or hibernation systemd-suspend.service (and the other mentioned units, respectively) will
run all executables in /usr/lib/systemd/system-sleep/ and pass two arguments to them. The first argument will be "pre", the second either
"suspend", "hibernate", or "hybrid-sleep" depending on the chosen action. Immediately after leaving system suspend and/or hibernation the
same executables are run, but the first argument is now "post". All executables in this directory are executed in parallel, and execution
of the action is not continued until all executables have finished.
Note that scripts or binaries dropped in /usr/lib/systemd/system-sleep/ are intended for local use only and should be considered hacks. If
applications want to be notified of system suspend/hibernation and resume, there are much nicer interfaces available.
Note that systemd-suspend.service, systemd-hibernate.service, and systemd-hybrid-sleep.service should never be executed directly. Instead,
trigger system sleep states with a command such as "systemctl suspend" or similar.
Internally, this service will echo a string like "mem" into /sys/power/state, to trigger the actual system suspend. What exactly is written
where can be configured in the "[Sleep]" section of /etc/systemd/sleep.conf. See systemd-sleep.conf(5).
OPTIONS
systemd-sleep understands the following commands:
-h, --help
Print a short help text and exit.
--version
Print the systemd version identifier and exit.
suspend, hibernate, hybrid-sleep
Suspend, hibernate, or put the system to hybrid sleep.
SEE ALSO systemd-sleep.conf(5), systemd(1), systemctl(1), systemd.special(7), systemd-halt.service(8)systemd 208SYSTEMD-SUSPEND.SERVICE(8)