Since you are driving the interaction remotely and possibly dealing with multiple logins concurrently the way I'd do this is to use an interact for each spawn_id (after successful setup) with a procedure that periodically polls the remote filesystem, makes the necessary changes and informs you of completion or error.
Here is a basic example from some code I wrote several years ago. You may want to check the interact examples out at the expect site and at active state.
I have a shell script that runs all the time looking for a certain type of file and then it processes the file through a series of other scripts. The script is watching a directory that has files uploaded to it via SFTP. It already checks the size of the file to make sure that it is not still... (3 Replies)
I need a script that will check for the existence of new files that FTP'd in the morning, results go to log file. The 2nd step is to compare the new file with the previous days file. If the new file size is 30% or more smaller in size then previous day this needs to also be sent to log.
This... (1 Reply)
Hi,
I have an expect script that logs into a host (via ssh) requests the hostid then exits... I am happy with that.
However how can I run the same script in a kind of 'while read line' and enter lots of hosts? My knowledge is still very limited (as you will soon see) so any other ideas would... (2 Replies)
Hello to all...this is my first post (so please go easy). :)
I feel pretty solid at expect scripting, but I'm running into an issue that I'm not able to wrap my head around. I wrote a script that is a little advanced for logging into a remote Linux machine and changing text in a file using sed.... (2 Replies)
Hi,
Another problem, here is my code
#!/bin/sh
dir='/opt/apps/script/CSV'
datadir='/opt/apps/script/data'
while : ; do
ls -1rt $dir/*.csv > /dev/null 2>&1
if ;then
cp $datadir/weekly.txt $dir/weekly.csv
else
exit 0
fi
done (10 Replies)
I will appreciate any help with this...
I have a file in this directory that looks like: this
07210900.SUP, I am getting the following error:
Activities for Tue Jul 21 07:29:14 EDT 2009:
File 07210900.SUP does not exist or unreadable
End of activities
The idea is to capture the file in... (1 Reply)
This Expect script provides expect with a list of IP addresses to Cisco IPS sensors and commands to configure Cisco IPS sensors. The user, password, IP addresses, prompt regex, etc. have been anonymized. In general this script will log into the sensors and send commands successfully but there are... (1 Reply)
Hi All,
Thanks in Advance
I wrote the following code
if
then
echo "version is 1.1"
for i in "subscriber promplan mapping dedicatedaccount faflistSub faflistAcc accumulator pam_account"
do
FILE="SDP_DUMP_$i.csv"
echo "$FILE"
... (5 Replies)
I'm fairly new to scripting so this might not be possible.
I am using Expect with Cisco switches and need to capture the string after finding the expect request. For example, when I issue "show version" on a Nexus switch, I'm looking to capture the current firmware version:
#show version
... (0 Replies)
Discussion started by: IBGaryA
0 Replies
LEARN ABOUT CENTOS
hostnamectl
HOSTNAMECTL(1) hostnamectl HOSTNAMECTL(1)NAME
hostnamectl - Control the system hostname
SYNOPSIS
hostnamectl [OPTIONS...] {COMMAND}
DESCRIPTION
hostnamectl may be used to query and change the system hostname and related settings.
This tool distinguishes three different hostnames: the high-level "pretty" hostname which might include all kinds of special characters
(e.g. "Lennart's Laptop"), the static hostname which is used to initialize the kernel hostname at boot (e.g. "lennarts-laptop"), and the
transient hostname which might be assigned temporarily due to network configuration and might revert back to the static hostname if network
connectivity is lost and is only temporarily written to the kernel hostname (e.g. "dhcp-47-11").
Note that the pretty hostname has little restrictions on the characters used, while the static and transient hostnames are limited to the
usually accepted characters of Internet domain names.
The static hostname is stored in /etc/hostname, see hostname(5) for more information. The pretty hostname, chassis type, and icon name are
stored in /etc/machine-info, see machine-id(5).
OPTIONS
The following options are understood:
-h, --help
Prints a short help text and exits.
--version
Prints a short version string and exits.
--no-ask-password
Do not query the user for authentication for privileged operations.
-P, --privileged
Acquire privileges via PolicyKit before executing the operation.
-H, --host
Execute the operation remotely. Specify a hostname, or username and hostname separated by "@", to connect to. This will use SSH to talk
to a remote system.
--static, --transient, --pretty
If status is used (or no explicit command is given) and one of those fields is given, hostnamectl will print out just this selected
hostname.
If used with set-hostname, only the selected hostname(s) will be updated. When more than one of those options is used, all the
specified hostnames will be updated.
The following commands are understood:
status
Show current system hostname and related information.
set-hostname [NAME]
Set the system hostname. By default, this will alter the pretty, the static, and the transient hostname alike; however, if one or more
of --static, --transient, --pretty are used, only the selected hostnames are changed. If the pretty hostname is being set, and static
or transient are being set as well, the specified hostname will be simplified in regards to the character set used before the latter
are updated. This is done by replacing spaces with "-" and removing special characters. This ensures that the pretty and the static
hostname are always closely related while still following the validity rules of the specific name. This simplification of the hostname
string is not done if only the transient and/or static host names are set, and the pretty host name is left untouched. Pass the empty
string "" as the hostname to reset the selected hostnames to their default (usually "localhost").
set-icon-name [NAME]
Set the system icon name. The icon name is used by some graphical applications to visualize this host. The icon name should follow the
Icon Naming Specification[1]. Pass an empty string to this operation to reset the icon name to the default value, which is determined
from chassis type (see below) and possibly other parameters.
set-chassis [TYPE]
Set the chassis type. The chassis type is used by some graphical applications to visualize the host or alter user interaction.
Currently, the following chassis types are defined: "desktop", "laptop", "server", "tablet", "handset", as well as the special chassis
types "vm" and "container" for virtualized systems that lack an immediate physical chassis. Pass an empty string to this operation to
reset the chassis type to the default value which is determined from the firmware and possibly other parameters.
EXIT STATUS
On success, 0 is returned, a non-zero failure code otherwise.
SEE ALSO systemd(1), hostname(1), hostname(5), machine-info(5), systemctl(1), systemd-hostnamed.service(8)NOTES
1. Icon Naming Specification
http://standards.freedesktop.org/icon-naming-spec/icon-naming-spec-latest.html
systemd 208HOSTNAMECTL(1)