If I use double quotes, then the hostname is printed properly but the path on the screen display does not change even when I change the directory. I'm using korn shell in AIX.
So...
1) what is the diff b/w single and double quote
2) what is the correct code to display my path, user and hostname as I'm trying with the above code.
Hello, I'm trying to use grep or egrep to exclude a whole range of characters but how do I exclude both a single and a double quote.
It might be easier to say how do I use grep to find both single and double quotes.
grep ' ' " ' file
grep detects the first single quote within my... (4 Replies)
I'm not very familiar with the ssh command. When I tried to set a variable and then echo its value on a remote machine via ssh, I found a problem. For example,
$ ITSME=itsme
$ ssh xxx.xxxx.xxx.xxx "ITSME=itsyou; echo $ITSME"
itsme
$ ssh xxx.xxxx.xxx.xxx 'ITSME=itsyou; echo $ITSME'
itsyou
$... (3 Replies)
Hi,
I am trying to write the following command as an alias in my .bashrc file.
bjobs -u all | awk '{if (NR > 1) {username++;}}END{{print"\nJOBS BY USER:\n"} for (i in username) {print username,i;}{print"\n Total Jobs=",NR-1,"\n" }}'
The command simply puts how many jobs each user is... (2 Replies)
Hi guys, I have a sed line in double quotes which works fine, but I want it to be in single quotes
here is the sed line
sed "/abc_def/s/\'.*\'/\'\${abc_def}\'/"
can some one give the equivalent to the above script in single quotes
Thanks a ton (5 Replies)
Unix superusers,
I am new to unix but would like to learn more about grep. I am very familiar with regular expressions as i have used them for searching text files in windows based text editors. Since I am not very familiar with Unix, I dont understand when one should use GREP with the... (2 Replies)
Hi Unix experts,
Believe me, this forum has been really great help and I searched for many things that were already answered before open new post that were just new versions of old one, but with this one, I just can't simply move any forward.
This must be quite easy, but I cant find where I... (1 Reply)
Hello. I'm trying to write a bash script that uses GNU screen and have hit a brick wall that has cost me many hours... (I'm sure it has something to do with quoting/globbing, which is why I post it here)
I can make a script that does the following just fine:
test.sh:
#!/bin/bash
# make... (2 Replies)
Hi i have to insert the below line into a specific line number of another file
export MBR_CNT_PRCP_TYPE_CODES_DEL="'01','02','04','05','49','55','UNK'"
I have passed the above line to a variable say ins_line. I have used below command to perform the insert
awk 'NR==3{print "'"${ins_line}"'"}1'... (1 Reply)
Hi Froum.
I have tried in vain to find a solution for this problem - I'm trying to replace any double quotes within a quoted string with a single quote, leaving everything else as is.
I have the following data:
Before:
... (32 Replies)
Hi All,
I'm unable to load the data using sql loader where there are double quotes within the double quotes As these are optionally enclosed by double quotes.
Sample Data :
"221100",138.00,"D","0019/1477","44012075","49938","49938/15043000","Television - 22" Refurbished - Airwave","Supply... (6 Replies)
Discussion started by: mlavanya
6 Replies
LEARN ABOUT CENTOS
fence_virsh
FENCE_AGENT(8) System Manager's Manual FENCE_AGENT(8)NAME
fence_virsh - Fence agent for virsh
DESCRIPTION
fence_virsh is an I/O Fencing agent which can be used with the virtual machines managed by libvirt. It logs via ssh to a dom0 and there run
virsh command, which does all work.
By default, virsh needs root account to do properly work. So you must allow ssh login in your sshd_config.
fence_virsh accepts options on the command line as well as from stdin. Fenced sends parameters through stdin when it execs the agent.
fence_virsh can be run by itself with command line options. This is useful for testing and for turning outlets on or off from scripts.
Vendor URL: http://libvirt.org
PARAMETERS -a, --ip=[ip]
IP Address or Hostname This parameter is always required.
-l, --username=[name]
Login Name This parameter is always required.
-p, --password=[password]
Login password or passphrase
-c, --command-prompt=[prompt]
Force Python regex for command prompt (Default Value: ['[EXPECT]# '])
-x, --ssh
SSH connection (Default Value: 1)
-n, --plug=[id]
Physical plug number, name of virtual machine or UUID This parameter is always required.
-u, --ipport=[port]
TCP/UDP port to use for connection with device (Default Value: 22)
-4, --inet4-only
Forces agent to use IPv4 addresses only
-6, --inet6-only
Forces agent to use IPv6 addresses only
-S, --password-script=[script]
Script to retrieve password
-k, --identity-file=[filename]
Identity file for ssh
--ssh-options=[options]
SSH options to use (Default Value: -t '/bin/bash -c "PS1=# /bin/bash --noprofile --norc"')
-o, --action=[action]
Fencing Action (Default Value: reboot)
-v, --verbose
Verbose mode
-D, --debug-file=[debugfile]
Write debug information to given file
-V, --version
Display version information and exit
-h, --help
Display help and exit
-C, --separator=[char]
Separator for CSV created by operation list (Default Value: ,)
--power-timeout=[seconds]
Test X seconds for status change after ON/OFF (Default Value: 20)
--shell-timeout=[seconds]
Wait X seconds for cmd prompt after issuing command (Default Value: 3)
--login-timeout=[seconds]
Wait X seconds for cmd prompt after login (Default Value: 5)
--power-wait=[seconds]
Wait X seconds after issuing ON/OFF (Default Value: 0)
--delay=[seconds]
Wait X seconds before fencing is started (Default Value: 0)
--retry-on=[attempts]
Count of attempts to retry power on (Default Value: 1)
--use-sudo
Use sudo (without password) when calling 3rd party sotfware.
ACTIONS
on Power on machine.
off Power off machine.
reboot Reboot machine.
status This returns the status of the plug/virtual machine.
list List available plugs with aliases/virtual machines if there is support for more then one device. Returns N/A otherwise.
monitor
Check the health of fence device
metadata
Display the XML metadata describing this resource.
STDIN PARAMETERS
ipaddr IP Address or Hostname This parameter is always required.
login Login Name This parameter is always required.
passwd Login password or passphrase
cmd_prompt
Force Python regex for command prompt (Default Value: ['[EXPECT]# '])
secure SSH connection (Default Value: 1)
port Physical plug number, name of virtual machine or UUID This parameter is always required.
ipport TCP/UDP port to use for connection with device (Default Value: 22)
inet4_only
Forces agent to use IPv4 addresses only
inet6_only
Forces agent to use IPv6 addresses only
passwd_script
Script to retrieve password
identity_file
Identity file for ssh
ssh_options
SSH options to use (Default Value: -t '/bin/bash -c "PS1=# /bin/bash --noprofile --norc"')
action Fencing Action (Default Value: reboot)
verbose
Verbose mode
debug Write debug information to given file
version
Display version information and exit
help Display help and exit
separator
Separator for CSV created by operation list (Default Value: ,)
power_timeout
Test X seconds for status change after ON/OFF (Default Value: 20)
shell_timeout
Wait X seconds for cmd prompt after issuing command (Default Value: 3)
login_timeout
Wait X seconds for cmd prompt after login (Default Value: 5)
power_wait
Wait X seconds after issuing ON/OFF (Default Value: 0)
delay Wait X seconds before fencing is started (Default Value: 0)
retry_on
Count of attempts to retry power on (Default Value: 1)
sudo Use sudo (without password) when calling 3rd party sotfware.
fence_virsh (Fence Agent) 2009-10-20 FENCE_AGENT(8)