Hi Perl/UNIX experts,
I have a problem in running a shell script from my perl script (auto.pl).
I run the perl script using
perl auto.pl
from the shell prompt
The shell script picks the files in "input" folder and procesess it.
The shell script blue.sh has this code.
export... (16 Replies)
Hi,
I have an HTML form through which I get some text as input. i need to run a shell script say script.sh inside a perl-cgi script named main_cgi.sh on the form input.
I want to write the contents of the form in a file and then perform some command line operations like grep, cat on the text... (2 Replies)
i want use ssh on the host01 to execute autoexec.sh on the host02 like following :
host01> ssh host02 autoexec.sh
autoexec.sh include nohup command like follwing :
nohup /home/jack/deletedata.sh &
after i execute ssh host02 autoexec.sh one the host01. i can't found deletedata.sh... (1 Reply)
Hi,
I basically have 2 shell scripts.
One is a shell script will get the variable value from the user. The variable is nothing but the IP of the remote system.
Another shell script is a script that does the job of connecting to the remote system using ssh. This uses a expect utility in turn.
... (2 Replies)
Hi All,
I have new for shell scripting.
Problem : I have one scrip at serv1 and path of server is /apps/dev/provimage/scripts and script name:extract_ancillary.bat.
I need to call this script at server2(my working server) and execute at server2 .
Please let me know how to build the... (5 Replies)
I have a shell script (.sh) and I want to pass a parameter value to the awk command but I am getting exception, please assist.
diff=$1$2.diff
id=$2 new=new_$diff
echo "My id is $1"
echo "I want to sync for user account $id"
##awk command I am using is as below
cat $diff | awk... (2 Replies)
Dear Unix gurus,
We have a config shell script file which has 30 variables which needs to be passed to master unix shell script that invokes oracle database sessions. So those 30 variables need to go through the database sessions (They are inputs) via a shell script. one of the variable name... (1 Reply)
Dear Unix gurus,
We have a config shell script file which has 30 variables which needs to be passed to master unix shell script that invokes oracle database sessions. So those 30 variables need to go through the database sessions (They are inputs) via a shell script. one of the variable name... (1 Reply)
Dear Friends,
Please help me on this
my script name is send.csh
In this i have written the statement like this
set args = ( city state country price )
I want to pass this array to another c shell called receiver.csh. and i want to use it in this c shell
or
how to pass to... (2 Replies)
Hi,
I am totally a newbie to any programming languages and I just started an entry level job in an IT company. One of my recent tasks is to create a script that is able to show the log file of linux service (i.e. ntpd service)
lets say, if I run my script ./test.sh, the output should be... (3 Replies)
Discussion started by: xiaogeji
3 Replies
LEARN ABOUT REDHAT
ssh-agent
SSH-AGENT(1) BSD General Commands Manual SSH-AGENT(1)NAME
ssh-agent -- authentication agent
SYNOPSIS
ssh-agent [-a bind_address] [-c | -s] [-d] [command [args ...]]
ssh-agent [-c | -s] -k
DESCRIPTION
ssh-agent is a program to hold private keys used for public key authentication (RSA, DSA). The idea is that ssh-agent is started in the
beginning of an X-session or a login session, and all other windows or programs are started as clients to the ssh-agent program. Through use
of environment variables the agent can be located and automatically used for authentication when logging in to other machines using ssh(1).
The options are as follows:
-a bind_address
Bind the agent to the unix-domain socket bind_address. The default is /tmp/ssh-XXXXXXXX/agent.<ppid>.
-c Generate C-shell commands on stdout. This is the default if SHELL looks like it's a csh style of shell.
-s Generate Bourne shell commands on stdout. This is the default if SHELL does not look like it's a csh style of shell.
-k Kill the current agent (given by the SSH_AGENT_PID environment variable).
-d Debug mode. When this option is specified ssh-agent will not fork.
If a commandline is given, this is executed as a subprocess of the agent. When the command dies, so does the agent.
The agent initially does not have any private keys. Keys are added using ssh-add(1). When executed without arguments, ssh-add(1) adds the
files $HOME/.ssh/id_rsa, $HOME/.ssh/id_dsa and $HOME/.ssh/identity. If the identity has a passphrase, ssh-add(1) asks for the passphrase
(using a small X11 application if running under X11, or from the terminal if running without X). It then sends the identity to the agent.
Several identities can be stored in the agent; the agent can automatically use any of these identities. ssh-add -l displays the identities
currently held by the agent.
The idea is that the agent is run in the user's local PC, laptop, or terminal. Authentication data need not be stored on any other machine,
and authentication passphrases never go over the network. However, the connection to the agent is forwarded over SSH remote logins, and the
user can thus use the privileges given by the identities anywhere in the network in a secure way.
There are two main ways to get an agent setup: Either the agent starts a new subcommand into which some environment variables are exported,
or the agent prints the needed shell commands (either sh(1) or csh(1) syntax can be generated) which can be evalled in the calling shell.
Later ssh(1) looks at these variables and uses them to establish a connection to the agent.
The agent will never send a private key over its request channel. Instead, operations that require a private key will be performed by the
agent, and the result will be returned to the requester. This way, private keys are not exposed to clients using the agent.
A unix-domain socket is created and the name of this socket is stored in the SSH_AUTH_SOCK environment variable. The socket is made accessi-
ble only to the current user. This method is easily abused by root or another instance of the same user.
The SSH_AGENT_PID environment variable holds the agent's process ID.
The agent exits automatically when the command given on the command line terminates.
FILES
$HOME/.ssh/identity
Contains the protocol version 1 RSA authentication identity of the user.
$HOME/.ssh/id_dsa
Contains the protocol version 2 DSA authentication identity of the user.
$HOME/.ssh/id_rsa
Contains the protocol version 2 RSA authentication identity of the user.
/tmp/ssh-XXXXXXXX/agent.<ppid>
Unix-domain sockets used to contain the connection to the authentication agent. These sockets should only be readable by the owner.
The sockets should get automatically removed when the agent exits.
AUTHORS
OpenSSH is a derivative of the original and free ssh 1.2.12 release by Tatu Ylonen. Aaron Campbell, Bob Beck, Markus Friedl, Niels Provos,
Theo de Raadt and Dug Song removed many bugs, re-added newer features and created OpenSSH. Markus Friedl contributed the support for SSH
protocol versions 1.5 and 2.0.
SEE ALSO ssh(1), ssh-add(1), ssh-keygen(1), sshd(8)BSD September 25, 1999 BSD