I have tried installing R on CentOS 5.5 by the following way and it test good.
rpm -Uvh http://download.fedora.redhat.com/pub/epel/5/i386/epel-release-5-4.noarch.rpm
yum install R
You can run the R with scripts from cmd line by doing one of the following:
R < mean.R
R CMD BATCH mean.R
Rscript mean.R
I accidently delete all my project stuffs by rm -rf.
Yeah I should be more careful. But it happens, this is life. Well the bad thing is that that folder also serves as my git repository. So I lost all my hard work. To avoid that I deceide to set up another local folder to serve as a remote git repository. The next time I will have a working copy there. Hope....
Let us start
1. make a directory:
mkdir ~/gitrepositories/pathogenbase.git
2. enter the new create diretory and initialize the repository
cd ~/gitrepositories/pathogenbase.git
git init --bare
3. now we have a working "remote" repository. We are ready to make a local clone:
cd ~
git clone ~/gitrepositories/pathogenbase.git pathogenbase
4. now we have an empty clone, at my home directory
5. creat a file touch file1
6. git add .
7. git commit -m "create file1"
9. git push origin master
I accidently delete all my project stuffs by rm -rf.
Yeah I should be more careful. But it happens, this is life. Well the bad thing is that that folder also serves as my git repository. So I lost all my hard work. To avoid that I deceide to set up another local folder to serve as a remote git repository. The next time I will have a working copy there. Hope....
Let us start
1. make a directory:
mkdir ~/gitrepositories/pathogenbase.git
2. enter the new create diretory and initialize the repository
cd ~/gitrepositories/pathogenbase.git
git init --bare
3. now we have a working "remote" repository. We are ready to make a local clone:
cd ~
git clone ~/gitrepositories/pathogenbase.git pathogenbase
4. now we have an empty clone, at my home directory
5. creat a file touch file1
6. git add .
7. git commit -m "create file1"
9. git push origin master
I was trying to use a template to create dynmic hyperlinks and get parameters from them. Searched online and found two ways to do that according to what types of the url you are creating
type 1: http://localhost:8000/pathogen/detaildemo/28
type 2: http://localhost:8000/pathogen/detaildemo/?id=28
For type 2: if you want to get the value of id, 28 in this case, you will have to use request.GET.get('id')
in template file you have such code to create dynamic hyperlnks
{% with table.rows as rows %}
{% paginate rows %}
{% for row in rows %}
{% for value in row %}
{{ value }}
{% endfor %}
{% endfor %}
{% show_pages %}
{% endwith %}
in url file you have
urlpatterns = patterns('',
.......
url(r'^detaildemo/$', views.someDemographics, name = 'show_some_demographics'),
.......
)
in view file you have
def someDemographics(request):
isolateId = request.GET.get('id')
initial_queryset = Demographic.objects.filter(isolate=isolateId)
demographicTable = DemographicTable (
initial_queryset,
order_by=request.GET.get('sort', 'isolate')
)
context = {
'table':demographicTable,
'a_title':'Demographic',
'b_title' : '../demographicsearch/',
}
return render_to_response(
'pathogen/detaildemographic.html',
context,
context_instance=RequestContext(request),
)
I am working on type 1 now.
I was trying to use a template to create dynmic hyperlinks and get parameters from them. Searched online and found two ways to do that according to what types of the url you are creating
type 1: http://localhost:8000/pathogen/detaildemo/28
type 2: http://localhost:8000/pathogen/detaildemo/?id=28
For type 2: if you want to get the value of id, 28 in this case, you will have to use request.GET.get('id')
in template file you have such code to create dynamic hyperlnks
<tbody>
{% with table.rows as rows %}
{% paginate rows %}
{% for row in rows %}
<tr>
{% for value in row %}
<td > <a href={% url pathogenbase.apps.pathogen.views.someDemographics %}?id={{row.isolate }}>{{ value }}</a> </td>
{% endfor %}
</tr>
{% endfor %}
{% show_pages %}
{% endwith %}
</tbody>
in url file you have
urlpatterns = patterns('',
.......
url(r'^detaildemo/$', views.someDemographics, name = 'show_some_demographics'),
.......
)
in view file you have
def someDemographics(request):
isolateId = request.GET.get('id')
initial_queryset = Demographic.objects.filter(isolate=isolateId)
demographicTable = DemographicTable (
initial_queryset,
order_by=request.GET.get('sort', 'isolate')
)
context = {
'table':demographicTable,
'a_title':'Demographic',
'b_title' : '../demographicsearch/',
}
return render_to_response(
'pathogen/detaildemographic.html',
context,
context_instance=RequestContext(request),
)
I am working on type 1 now.
I was wondering what's the name of the cross-line in CSS file. After consulted with my coworker and knew it is strikethrough. However when I put the trikethrough in the css file it does not work.
The true name is: line-through.
I was wondering what's the name of the cross-line in CSS file. After consulted with my coworker and knew it is strikethrough. However when I put the trikethrough in the css file it does not work.
The true name is: line-through.
1. See user login history
$ last: listing most recent logins by users.
$ last -a list the IP or name of the system from where the user logged in
2. Vied the currently logged in user
$ who: list logged in users and their process
$ users: only list the logged in users
3. Running procssses of logged in user
$ w : who is logged in and what they are doing now.
4. Others
$ uptime: tell how long the system has been running
$ id: display user and all group ids
$ free
$ du
$ df
$ env
$ ps
$ top
1. See user login history
$ last: listing most recent logins by users.
$ last -a list the IP or name of the system from where the user logged in
2. Vied the currently logged in user
$ who: list logged in users and their process
$ users: only list the logged in users
3. Running procssses of logged in user
$ w : who is logged in and what they are doing now.
4. Others
$ uptime: tell how long the system has been running
$ id: display user and all group ids
$ free
$ du
$ df
$ env
$ ps
$ top
/usr/sbin/useradd -G {group-name} username/usr/sbin/groupadd group_name/usr/sbin/useradd -G {group-name} usernamegroupadd group_namesmbpasswd -a usernamesudo /usr/sbin/useradd -d /home/username -s /bin/false -n username smbpasswd -d usernamesmbpasswd -x username1 .Installing samba via yum
yum -y install samba samba-common samba-client
Configuring samba. Before changing the configure file, back up the original file:
cp /etc/samba/smb.conf /etc/samba/smb.conf.orig
Showing you the basic configuration of samba. In this example we are going to share softwares directory. Only samba user can able to save files in this directory.
vi /etc/samba/smb.conf
Save and exit the configuration file.
2. Create Samba User
After you have install samba sever, yous still can’t login samba server. You will need create a samba user :
$ smbpasswd -a username‘-a’ switch tell smbpasswd we want to add a new user, username is the user you want to add.If you want use your windows login password to log in to samba server, you can define the password as your windows password here. The problem is that you need change your samba server password accordingly when you change your windows password.
Please take note, username must exist in /etc/passwd file or you will need use ‘useradd’ to create a user in Linux :
$ sudo /usr/sbin/useradd -d /home/username -s /bin/false -n username This will create a new user with same group name with (told by ‘-n’), but the user can’t login and run any shell command (because you have specfic the login shell is /bin/false by the ‘-s’ switch, if you want allow user to able to login to a shell, replace /bin/false with /bin/sh).
Ok now you have create a new samba user, how about you want delete or disable them? ‘-d’ switch will disable the user to login to samba server:
$ smbpasswd -d usernameIf you want to delete a user permanently:
$ smbpasswd -x username3. Configure iptables to allow conection to the samba server
Check to see whether you have port 137,138,139,443 and 445 open for connection. If not open them in iptables.
$ sudo vim /etc/sysconfig/iptables
$ sudo /etc/init.d/iptables restart
4. Start the Samba service
$ sudo /etc/init.d/smb start
$ sudo /sbin/chkconfig smb on
INSTALLED_APPS = (
# ...
'pagination',
)
MIDDLEWARE_CLASSES = (
# ...
'pagination.middleware.PaginationMiddleware',
)
("django.core.context_processors.auth",
"django.core.context_processors.debug",
"django.core.context_processors.i18n",
"django.core.context_processors.media",
"django.core.context_processors.request"){% load pagination_tags %}
{% autopaginate object_list %}This assumes that you would like to have the default 20 results per page. If you would like to specify your own amount of results per page, you can specify that like so:
{% autopaginate object_list 10 %}Note that this replaces object_list with the list for the current page, so you can iterate over the object_list like you normally would.
{% paginate %}This does not take any arguments, but does assume that you have already called autopaginate, so make sure to do so first.
| | {{ column }} |
|---|---|
| {{ value }} |
INSTALLED_APPS = (
# ...
'pagination',
)
MIDDLEWARE_CLASSES = (
# ...
'pagination.middleware.PaginationMiddleware',
)
("django.core.context_processors.auth",
"django.core.context_processors.debug",
"django.core.context_processors.i18n",
"django.core.context_processors.media",
"django.core.context_processors.request")
{% load pagination_tags %}
{% autopaginate object_list %}This assumes that you would like to have the default 20 results per page. If you would like to specify your own amount of results per page, you can specify that like so:
{% autopaginate object_list 10 %}Note that this replaces object_list with the list for the current page, so you can iterate over the object_list like you normally would.
{% paginate %}This does not take any arguments, but does assume that you have already called autopaginate, so make sure to do so first.
$ rsync -v -e ssh tommy@openbsd.nixcraft.in:~/webroot.txt /tmp $ rsync -r -a -v -e "ssh -l jerry" --delete openbsd.nixcraft.in:/webroot/ /local/webroot $ rsync -v -e ssh tommy@openbsd.nixcraft.in:~/webroot.txt /tmp $ rsync -r -a -v -e "ssh -l jerry" --delete openbsd.nixcraft.in:/webroot/ /local/webroot Syntax
$ rsync options source destination
Example 1. Synchronize Two Directories in a Local Server
$ rsync -zvr /var/opt/installation/inventory/ /root/temp
In the above rsync example:
-z is to enable compression
-v verbose
-r indicates recursive
Example 2. Preserve timestamps during Sync using rsync -a
rsync option -a indicates archive mode. -a option does the following,
Recursive mode
Preserves symbolic links
Preserves permissions
Preserves timestamp
Preserves owner and group
$ rsync -azv /var/opt/installation/inventory/ /root/temp/
Example 3. Synchronize Only One File
To copy only one file, specify the file name to rsync command, as shown below.
$ rsync -v /var/lib/rpm/Pubkeys /root/temp/
Example 4. Synchronize Files From Local to Remote
rsync allows you to synchronize files/directories between the local and remote system.
$ rsync -avz /root/temp/ thegeekstuff@192.168.200.10:/home/thegeekstuff/temp/
Example 5. Synchronize Files From Remote to Local
When you want to synchronize files from remote to local, specify remote path in source and local path in target as shown below.
$ rsync -avz thegeekstuff@192.168.200.10:/var/lib/rpm /root/temp
Example 6. Remote shell for Synchronization
rsync allows you to specify the remote shell which you want to use. You can use rsync ssh to enable the secured remote connection.
Use rsync -e ssh to specify which remote shell to use. In this case, rsync will use ssh.
$ rsync -avz -e ssh thegeekstuff@192.168.200.10:/var/lib/rpm /root/temp
Example 7. Do Not Overwrite the Modified Files at the Destination
In a typical sync situation, if a file is modified at the destination, we might not want to overwrite the file with the old file from the source.
Use rsync -u option to do exactly that. (i.e do not overwrite a file at the destination, if it is modified). In the following example, the file called Basenames is already modified at the destination. So, it will not be overwritten with rsync -u.
$ rsync -avzu thegeekstuff@192.168.200.10:/var/lib/rpm /root/temp
Example 8. Synchronize only the Directory Tree Structure (not the files)
Use rsync -d option to synchronize only directory tree from source to the destination. The below example, synchronize only directory tree in recursive manner, not the files in the directories.
$ rsync -v -d thegeekstuff@192.168.200.10:/var/lib/ .
Example 9. View the rsync Progress during Transfer
When you use rsync for backup, you might want to know the progress of the backup. i.e how many files are copies, at what rate it is copying the file, etc.
rsync –progress option displays detailed progress of rsync execution as shown below.
$ rsync -avz --progress thegeekstuff@192.168.200.10:/var/lib/rpm/ /root/temp/
Example 10. Delete the Files Created at the Target
If a file is not present at the source, but present at the target, you might want to delete the file at the target during rsync.
In that case, use –delete option as shown below. rsync delete option deletes files that are not there in source directory.
$ rsync -avz --delete thegeekstuff@192.168.200.10:/var/lib/rpm/ .
Example 11. Do not Create New File at the Target
If you like, you can update (Sync) only the existing files at the target. In case source has new files, which is not there at the target, you can avoid creating these new files at the target. If you want this feature, use –existing option with rsync command.
$ rsync -avz --existing root@192.168.1.2:/var/lib/rpm/ .
Example 12. View the Changes Between Source and Destination
This option is useful to view the difference in the files or directories between source and destination.-i option displays the item changes.
$ rsync -avzi thegeekstuff@192.168.200.10:/var/lib/rpm/ /root/temp/
Example 13. Include and Exclude Pattern during File Transfer
rsync allows you to give the pattern you want to include and exclude files or directories while doing synchronization.
$ rsync -avz --include 'P*' --exclude '*' thegeekstuff@192.168.200.10:/var/lib/rpm/ /root/temp/
Example 14. Do Not Transfer Large Files
You can tell rsync not to transfer files that are greater than a specific size using rsync –max-size option.
$ rsync -avz --max-size='100K' thegeekstuff@192.168.200.10:/var/lib/rpm/ /root/temp/
max-size=100K makes rsync to transfer only the files that are less than or equal to 100K. You can indicate M for megabytes and G for gigabytes.
1. If you want to show wehen the command was issued:
$ export HISTTIMEFORMAT='%F %T '
$ history > file_name
2. Search the history using Control+R
1. If you want to show wehen the command was issued:
$ export HISTTIMEFORMAT='%F %T '
$ history > file_name
2. Search the history using Control+R
Reason:
This Websense category is filtered: Explicitly Blocked."
If you answer yes, try to visit the site though here:
https://proxy1plus.appspot.com/
Reason:
This Websense category is filtered: Explicitly Blocked."
If you answer yes, try to visit the site though here:
https://proxy1plus.appspot.com/
1. Install epel (extra packages for enterprise linux). This will add the epel repo to yum and give us a running start at some normally unavailable packages. It also provides some updates to existing repo packages:
To install EPEL follow this link: http://b2ctran.wordpress.com/2013/03/08/enable-epel-repository-on-centos/
2. Preinstall dependencies: development tools, ssl and zlib and some other packages which will be needed by python
$ yum -y groupinstall 'Development Tools'
$ yum -y install openssl-devel zlib zlib-devel
$ yum install -y gdbm-devel sqlite-devel tk-devel ncurses-devel bzip2-devel readline-devel db4-devel
3. Prepare python2.7 source code
$ cd
$ wget http://www.python.org/ftp/python/2.7.2/Python-2.7.2.tgz
$ tar –zvxf Python-2.7.2.tgz
$ cd Python-2.7.2
Configure the Modules/Setup.dist to enable the gzip and readline support by uncomment the associated entries.
#zlib zlibmodule.c -I$(prefix)/include -L$(exec_prefix)/lib –lz
#readline realine.c -lreadline –ltermcap
4. configure python so it will not overwriting the system’s default python
./configure –prefix= /opt/python2.7 --with-threads --enable-shared
1)--enable-shared is required if you are going to install mod_wsgi. Or you have to rebuild the python library.
2) However, if you choose –enable-shared parameter you may encounter error while you are trying to install pscopg2.
The error message is "ld cannot find lpython2.7".
Here is a solution to that:
$ cd /usr/lib64
$ sudo ln -s /opt/python2.7/lib/libpython2.7.so.1.0 libpython2.7.so.1.0
$ sudo ln -s libpython2.7.so.1.0 libpython2.7.so
5. make and install
$ make
$ sudo make install
6. Now we need to update BASH so that it knows about the new shared libraries that we have put on the system.
$ sudotouch /etc/ld.so.conf.d/opt-python2.7.conf
add put /opt/python2.7/lib in the created file
$ sudo /sbin/ldconfig
7. install setuptools and pip:
$wget https://pypi.python.org/packages/2.7/s/setuptools/setuptools-0.6c11-py2.7.egg
$sudo sh setuptools-0.6c11-py2.7.egg
if you encounter python2.7 could not found error, the following will probably fix it:
$ sudo ln -s /opt/python2.7/bin/python /usr/bin/python2.7
After installing easy_install you can install pip: sudo /opt/python2.7/bin/easy_install pip