- Description:
Trying to print to Toshiba eStudio 4540C multifunction machine (with official TOSHIBA ColorMFP PPD), got the following error:ERROR: invalidfont OFFENDING COMMAND: $definefont STACK: --nostringval-- /TVZYWM+Ubuntu-Medium --nostringval-- /TVZYWM+Ubuntu-Medium --nostringval-- --nostringval--
- Solution:
It was caused by the bug in cups-filters package discussed here. The work around is adding an option pdftops-renderer-default=pdftops, simply run the following command as root:sudo lpadmin -p TOSHIBA-ColorMFP -o pdftops-renderer-default=pdftops
Note: you need to replace TOSHIBA-ColorMFP with your toshiba printer's name. To find out your printer's name, runlpstat -a
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Toshiba Studio printer fails to print with error: invalidfont
Install latest Firefox/Iceweasel on Debian wheezy
sudo echo "deb http://mozilla.debian.net/ wheezy-backports iceweasel-release" >> /etc/apt/sources.list sudo apt-get install debian-keyring pkg-mozilla-archive-keyring sudo gpg --check-sigs --fingerprint --keyring /etc/apt/trusted.gpg.d/pkg-mozilla-archive-keyring.gpg --keyring /usr/share/keyrings/debian-keyring.gpg pkg-mozilla-maintainers sudo apt-get update sudo apt-get install -t wheezy-backports iceweasel
See also
Install Nomachine NX Server Free Edition on Debian Linux
The Nomachine nxserver free edition has limitation: allows only 2 concurrent user sessions. But it is fine for me to connect to my Linux workstation at work. It is easier to setup than the freenx server. See the guide below:
- Run the following commands to download and install nomachine nxclient, nxnode and nxserver packages:
if [[ $(uname -m)=="x86_64" ]]; then export MARC=amd64; else export MARC=i386; fi wget http://web04.nomachine.com/download/3.5.0/Linux/nxclient_3.5.0-7_${MARC}.deb sudo dpkg -i nxclient_3.5.0-7_${MARC}.deb wget http://web04.nomachine.com/download/3.5.0/Linux/nxnode_3.5.0-9_${MARC}.deb sudo dpkg -i nxnode_3.5.0-9_${MARC}.deb wget http://web04.nomachine.com/download/3.5.0/Linux/FE/nxserver_3.5.0-11_${MARC}.deb sudo dpkg -i nxserver_3.5.0-11_${MARC}.deb
- Setup your own server private key instead of the nomachine key:
sudo ssh-keygen -t dsa -f /usr/NX/home/nx/.ssh/id_dsa sudo chown nx:nx /usr/NX/home/nx/.ssh/id_dsa sudo mv /usr/NX/home/nx/.ssh/authorized_keys2 /usr/NX/home/nx/.ssh/authorized_keys2.old sudo cat /usr/NX/home/nx/.ssh/id_dsa.pub >> /usr/NX/home/nx/.ssh/authorized_keys2
You can now use the private key in /usr/NX/home/nx/.ssh/id_dsa for your client to connect to the nxserver. - Secure ssh for NX server by editting /etc/ssh/sshd_config as root:
- Enable PubkeyAuthentication for all:
PubkeyAuthentication yes
- Disable PasswordAuthentication for all:
PasswordAuthentication no
- Allows PasswordAuthentication only for the FreeNX users by appending the following line to sshd_config:
Match Group nxusers PasswordAuthentication yes
or if you want to allow individual users:Match User john alex PasswordAuthentication yes
- Enable PubkeyAuthentication for all:
Install FreeNX on Debian 7.1 wheezy
- Download and run the script
- Secure ssh:
- Create a group nxusers and add all the users require remote NX access to the group:e.g.
sudo groupadd nxusers sudo usermod -a -G nxusers wilson
- Edit /etc/ssh/sshd_config as root:
- Enable PubkeyAuthentication for all:
PubkeyAuthentication yes
- Disable PasswordAuthentication for all:
PasswordAuthentication no
- Allows PasswordAuthentication only for the FreeNX users by appending the following line to sshd_config:
Match Group nxusers PasswordAuthentication yes
or if you want to allow individual users:Match User john alex PasswordAuthentication yes
- Enable PubkeyAuthentication for all:
- Restart ssh server:
sudo /etc/init.d/ssh reload
- Create a group nxusers and add all the users require remote NX access to the group:e.g.
shell scripting: remove leading and trailing character
Suppose we want to remove the leading and trail character from string: <1.2.3> and expecting result should be 1.2.3
- Option 1:
str=<1.2.3> str1="${str%\<}" str2="${str1#\>}" echo $str2
- Option 2: Using sed
echo "<1.2.3>" | sed -e 's/^\<//' -e 's/\>$//'
Enable/Disable LXDE right-click menu
Openbox/LXDE: default key combinations (shortcut keys)
Openbox default key combinations
- Alt-F4 Close the active window
- Alt-Space Show the client menu for the active window
- Alt-Tab Cycle between windows on the desktop
- Alt-Shift-Tab Cycle between windows on the desktop in reverse order
- Control-Alt-Tab Cycle between panel and desktop windows on the desktop
- Windows-D Hide all windows to show the desktop
- Windows-E Run the Konqueror file manager (This is an example of how to run a program with a key binding)
- Alt-Escape Lower the active window behind other windows, and activate the last window that was in use
- Windows-F1 Go to the first desktop instantly
- Windows-F2 Go to the second desktop instantly
- Windows-F3 Go to the third desktop instantly
- Windows-F4 Go to the fourth desktop instantly
- Control-Alt-Left Open the desktop switching dialog, to go to the desktop to the left of the current one
- Control-Alt-Right Open the desktop switching dialog, to go to the desktop to the right of the current one
- Control-Alt-Up Open the desktop switching dialog, to go to the desktop above the current one (This will only be useful if you use a pager to set up a desktop layout with multiple rows)
- Control-Alt-Down Open the desktop switching dialog, to go to the desktop below the current one (This will only be useful if you use a pager to set up a desktop layout with multiple rows)
- Shift-Alt-Left Open the desktop switching dialog, to go to the desktop to the left of the current one, and bring the active window with you
- Shift-Alt-Right Open the desktop switching dialog, to go to the desktop to the right of the current one, and bring the active window with you
- Shift-Alt-Up Open the desktop switching dialog, to go to the desktop above the current one, and bring the active window with you (This will only be useful if you use a pager to set up a desktop layout with multiple rows)
- Shift-Alt-Down Open the desktop switching dialog, to go to the desktop below the current one, and bring the active window with you (This will only be useful if you use a pager to set up a desktop layout with multiple rows)
- Alt-Left mouse button Move a window
- Alt-Right mouse button Resize a window. The window is resized towards the edge that the mouse is nearest to. So use Alt-Right mouse button in the top right corner of a window to resize that corner.
- Alt-Scroll wheel Change desktops forward and backward
LXDE: load gnome-keyring automatically
I got the following error
The solution is
WARNING: gnome-keyring:: couldn't connect to: /home/wilson/.cache/keyring-ryOMzs/pkcs11: No such file or directorywhen accessing a git repository via https protocol.
The solution is
sudo vi /etc/xdg/autostart/gnome-keyring-pkcs11.desktopand append LXDE:
OnlyShowIn=GNOME;Unity;LXDE;
multicast ip address 224.0.0.251 port 5353
To enable Bonjour/mDNS, you need to allow traffic from multicast ip 224.0.0.251 on port 5353.
Enable simple iptables firewall on Debian 7 Wheezy
- Install iptables-persistent:
sudo apt-get install iptables-persistent
- Edit /etc/iptables/rules.v4 and /etc/iptables/rules.v6
# /etc/iptables/rules.v4 *filter :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [0:0] :RH-Firewall-1-INPUT - [0:0] -A INPUT -j RH-Firewall-1-INPUT -A FORWARD -j RH-Firewall-1-INPUT -A RH-Firewall-1-INPUT -i lo -j ACCEPT -A RH-Firewall-1-INPUT -p icmp --icmp-type any -j ACCEPT # ESP protocol -A RH-Firewall-1-INPUT -p 50 -j ACCEPT # AH protocol -A RH-Firewall-1-INPUT -p 51 -j ACCEPT # multicast Bonjour/mDNS -A RH-Firewall-1-INPUT -p udp --dport 5353 -d 224.0.0.251 -j ACCEPT # cups printing -A RH-Firewall-1-INPUT -p udp -m udp --dport 631 -j ACCEPT -A RH-Firewall-1-INPUT -p tcp -m tcp --dport 631 -j ACCEPT -A RH-Firewall-1-INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT -A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT -A RH-Firewall-1-INPUT -j REJECT --reject-with icmp-host-prohibited COMMIT
# /etc/iptables/rules.v6 *filter :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [0:0] :RH-Firewall-1-INPUT - [0:0] -A INPUT -j RH-Firewall-1-INPUT -A FORWARD -j RH-Firewall-1-INPUT -A RH-Firewall-1-INPUT -i lo -j ACCEPT -A RH-Firewall-1-INPUT -p icmpv6 -j ACCEPT # ESP protocol -A RH-Firewall-1-INPUT -p 50 -j ACCEPT # AH protocol -A RH-Firewall-1-INPUT -p 51 -j ACCEPT # multicast Bonjour/mDNS -A RH-Firewall-1-INPUT -p udp --dport 5353 -d ff02::fb -j ACCEPT # cups printing -A RH-Firewall-1-INPUT -p udp -m udp --dport 631 -j ACCEPT -A RH-Firewall-1-INPUT -p tcp -m tcp --dport 631 -j ACCEPT -A RH-Firewall-1-INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT -A RH-Firewall-1-INPUT -m state --state NEW -p tcp --dport 22 -j ACCEPT -A RH-Firewall-1-INPUT -j REJECT --reject-with icmp6-adm-prohibited COMMIT
See also
X11 display forwarding for root
- The problem:
[wilson@local-host]$ ssh -Y -A -t -C -o CompressionLevel=9 wilson@remote-host [wilson@remote-host]$ sudo su [root@remote-host]$ xclock X11 connection rejected because of wrong authentication. Error: cannot open display: localhost:10.0
- The solution:
[wilson@local-host]$ ssh -Y -A -t -C -o CompressionLevel=9 wilson@remote-host [wilson@remote-host]$ sudo su [root@remote-host]$ su - wilson -c 'xauth list' | grep $(echo $DISPLAY | cut -d ':' -f 2 | cut -d '.' -f 1 | sed -e s/^/:/) | xargs -n 3 xauth add [root@remote-host]$ xclock
See also
Install screen capture tool on Debian 7 Wheezy with LXDE desktop
- Install scrot:
sudo apt-get install scrot giblib
- Bind PrtScn key with the scrot command by adding following into ~/.config/openbox/lxde-rc.xml:
<!-- Screen Capture --> <keybind key="Print"> <action name="Execute"> <command>sh -c "scrot -u -d 3 ~/Desktop/screenshot-$(date +%Y%m%d%H%M%S).png"</command> </action> </keybind>
- Reload lxde configuration:
openbox --reconfigure
- You can then try hit PrtScn key to capture the current active window.
See also
Install Eclipse Color Themes from Ecipse Marktet Place
- To install: Help → Eclipse Marketplace... search for Eclipse Color Theme, click the returned item to start installation.
- To change themes: Window → Preferences → General → Appearance → Color Theme
See also
Debian Wheezy: Error setting up printer: "Option 'printer-resolution' has value '(unknown IPP tag)' and cannot be edited."
When setting up printer on Debian Wheezy, got error:
Option 'printer-resolution' has value '(unknown IPP tag)' and cannot be edited.The error was not harmful and you can just ignore it. To get rid of it, you can install a newer version of python-cups package from ubuntu repository:
- 64 bit Debian Linux:
wget http://au.archive.ubuntu.com/ubuntu/pool/main/p/python-cups/python-cups_1.9.62-0ubuntu1_amd64.deb sudo dpkg -i python-cups_1.9.62-0ubuntu1_amd64.deb
- 32 bit Debian Linux:
wget http://au.archive.ubuntu.com/ubuntu/pool/main/p/python-cups/python-cups_1.9.62-0ubuntu1_i386.deb sudo dpkg -i python-cups_1.9.62-0ubuntu1_i386.deb
windows equivalent of the unix tail command
- Option 1: Install Windows Server 2003 Resource Kit Tools
- Option 2: Install Unix Utilities for Windows
Windows XP: set system proxy using proxycfg command
In Command Prompt window, run
To remove the proxy and connect direct to internet:
proxycfg -p wwwproxy.yourcompany.com:8888where 8888 is the port number of the proxy server.
To remove the proxy and connect direct to internet:
proxycfg -d
See also
Command to start windows update on Windows XP
In Command Prompt window, run
To check the log:
wuauclt /detectnowwill start the windows update.
To check the log:
type %windir%\windowsupdate.log
Mount NTFS partition on CentOS 6
- Enable epel repository
sudo yum install ntfs-3g ntfsprogs
- edit /etc/fstab and add
UUID=F8D22D76D22D39F0 /windows ntfs-3g rw,uid=500,gid=500,umask=007,locale=en_US.utf8 0 0
where you can get the uuid of the partition fromblkid
command. - If you want to create a NTFS partition, remember it type number is 7
- If you want to format a NTFS partition, you need to install ntfsprogs package, run command
sudo yum install ntfsprogs; sudo mkfs.ntfs /dev/sda6
Install FreeNX server on CentOS 6
Under construction
sudo yum install nx freenx
sudo vi /etc/nxserver/node.conf
DEFAULT_X_SESSION=/etc/X11/xinit/Xsession COMMAND_XTERM=gnome-terminal COMMAND_SMBMOUNT=/bin/mount COMMAND_SMBUMOUNT=/bin/umount
sudo vi /usr/bin/nxloadconfig
APPLICATION_LIBRARY_PRELOAD=/usr/lib64/NX/lib/libX11.so.6.2:/usr/lib64/NX/lib/libXext.so.6.4:/usr/lib64/NX/lib/libXcomp.so.3:/usr/lib64/NX/lib/libXcompext.so.3:/usr/lib64/NX/lib/libXrender.so.1
Install Chinese input method on CentOS 6
sudo yum install ibus ibus-gtk ibus-qt ibus-pinyin im-chooser
ibus-setup
vi ~/.bashrc
and addexport GTK_IM_MODULE=ibus export XMODIFIERS=@im=ibus export QT_IM_MODULE=ibus
Install Oracle Java 7 on CentOS 6
- Download the latest Java 7 JDK from Oracle.
- If your computer is intel 32 bit, download jdk-7uXX-linux-i586.rpm
- If your computer is intel 64 bit, download jdk-7uXX-linux-x64.rpm
- Install the rpm:
sudo yum install jdk-7u*.rpm
- Run the following script to update the java alternatives to use the ones from the newly installed JDK 7:
- Add
export JAVA_HOME=/usr/java/latest
to /etc/bashrc
See Also
Set up http proxy on CentOS 6.4
- Set up system wide proxy: System -> Preferences -> Network Proxy
- Edit /etc/environment:
sudo vi /etc/environment
and add lines like below:http_proxy=http://192.168.20.10:3128 https_proxy=https://192.168.20.10:3128 ftp_proxy=ftp://192.168.20.10:3128 rsync_proxy=http://192.168.20.10:3128 no_proxy="localhost,127.0.0.1,localaddress,.localdomain.com" HTTP_PROXY=http://192.168.20.10:3128 HTTPS_PROXY=https://192.168.20.10:3128 FTP_PROXY=ftp://192.168.20.10:3128 RSYNC_PROXY=http://192.168.20.10:3128 NO_PROXY="localhost,127.0.0.1,localaddress,.localdomain.com"
- Edit /etc/bashrc:
sudo vi /etc/bashrc
and append lines:export http_proxy=http://192.168.20.10:3128 export https_proxy=https://192.168.20.10:3128 export ftp_proxy=ftp://192.168.20.10:3128 export rsync_proxy=http://192.168.20.10:3128 export no_proxy="localhost,127.0.0.1,localaddress,.localdomain.com" export HTTP_PROXY=http://192.168.20.10:3128 export HTTPS_PROXY=https://192.168.20.10:3128 export FTP_PROXY=ftp://192.168.20.10:3128 export RSYNC_PROXY=http://192.168.20.10:3128 export NO_PROXY="localhost,127.0.0.1,localaddress,.localdomain.com"
- Set yum proxy: edit /etc/yum.conf
sudo vi /etc/yum.conf
and add line:proxy=http://192.168.20.10:3128
- Keep proxy settings through sudo:
sudo visudo
and add the following line:Defaults env_keep += "http_proxy https_proxy ftp_proxy no_proxy"
See also
CentOS 6.4 Installation Notes
- Setup network: System -> Preferences -> Network connections or simply run the following command in terminal:
sudo nm-connection-editor
- Enable sudo without passwd:
sudo visudo
and append line:username ALL=(ALL) NOPASSWD:ALL
- Install and enable rpmforge repositories
- Install epel repositories and set their priorities
- Set up http proxy
- Configure printer:
sudo yum install system-config-printer sudo system-config-printer
or System -> Administration -> Printing- Configure Toshiba eStudio 4540C
- Install Oracle Java 7
- Install Skype
- Install Dropbox
- Install KeepassX
- Install VirtualBox
- Install unrar, p7zip and file-roller (unrar is to extract .rar archives, p7zip is to extract .7z archives and file-roller is the gui archive manager). You need to enable rpmforge repository(see step 3) to install these packages:
sudo yum install unrar p7zip file-roller
- Install openssh-server
- Install LibreOffice:
sudo yum install libreoffice-core libreoffice-writer libreoffice-impress libreoffice-calc
- Install gnome-screenshot:
sudo yum install gnome-utils -y
- Install Firefox addons: xmarks, lastpass
- Install flash plugin
- Install ibus and pinyin Chinese input method
- Install git
sudo yum install git
- Install FreeNX server
- Download and install NoMachine NX client
sudo rpm -Uvh http://web04.nomachine.com/download/3.5.0/Linux/nxclient-3.5.0-7.x86_64.rpm
- Download and install Ubuntu font:
cd ~/Downloads; wget http://font.ubuntu.com/download/ubuntu-font-family-0.80.zip sudo mkdir /usr/share/fonts/ubuntu; cd /usr/share/ubuntu sudo unzip ~/Downloads/ubuntu-font-family-0.80.zip sudo mkfontdir; sudo mkfontscale; sudo fc-cache -fv
- Mount Window FAT32 partition:
sudo vi /etc/fstab
and add the line like below:/dev/sda5 /windows vfat rw,uid=500,gid=500,umask=077 0 0
then runsudo mount -a
- Mount NTFS partition
Install virtualbox on CentOS 6
- Install dkms package from rpmforge repository
yum --enablerepo rpmforge install dkms
If you have not yet install rpmforge repository, see How to install rpmforge repository on CentOS. - Dowload the repository file into /etc/yum.repos.d:
wget -O /etc/yum.repos.d/virtualbox.repo http://download.virtualbox.org/virtualbox/rpm/rhel/virtualbox.repo
- Update the packages:
yum update
- Find the latest VirtualBox package:
yum search VirtualBox
- Install the latest VirtualBox package:
yum install VirtualBox-4.2
- Start virtualbox, Applications -> System Tools -> Oracle VM VirtualBox
- Troubleshooting
- USB (Keyboard) subsystem not working, solution:
sudo usermod -a -G vboxusers yourusername
then log out and log back in.
- USB (Keyboard) subsystem not working, solution:
Shell scripting: pipe/redirect stdout and stderr
- redirect stdout to file:
ls > out.txt
- redirect stderr to file:
ls 2> err.txt
- redirect stderr to stdout:
my-command 2>&1
- redirect stdout to stderr:
my-command 1>&2
- redirect stdout and stderr to file:
my-command &> 1.txt
grep processes returned from ps command excluding grep command itself
ps aux | grep java | grep -v grep
Neuro-debian: repositories for Debian and Ubuntu Linux
NeuroDebian provides a large collection of popular neuroscience research software for the Debian operating system as well as Ubuntu and other derivatives. Popular packages include AFNI, FSL, PyMVPA and many others.
http://neuro.debian.net/pkgs.html
http://neuro.debian.net/pkgs.html
Java: convert an input stream to string
package test; import java.io.*; import java.util.Scanner; public class StreamUtil { public static String toString(InputStream in) throws Throwable { Scanner scanner = null; String s = ""; try { scanner = new Scanner(in, "UTF-8").useDelimiter("\\A"); s = scanner.hasNext() ? scanner.next() : ""; } finally { scanner.close(); } return s; } public static void main(String[] args) throws Throwable { System.out.println(toString(new FileInputStream(new File("/tmp/1.txt")))); } }
Eclipse: set default editor for unkown file types
awk: print the last two columns
cat file | awk '{print $(NF-1) $NF}'or
awk '{print $(NF-1) $NF}' file
XML element naming rules
XML elements must follow these naming rules:
- Names can contain letters, numbers, and other characters. Except for the first character, they can contain
- digits
- period(.)
- hyphen(-)
- underscore(_)
- colon(:) - legal but should be used except for namespaces
- NO other characters are allowed like #, @, $, %
- Names cannot start with a number or punctuation character. Must start with a letter or a underscore(_).
- Names cannot start with the letters xml (or XML, or Xml, or xMl etc)
- Names cannot contain spaces
Install Flash plugin on CentOS 6
- Add Adobe repository:
sudo rpm -ivh http://linuxdownload.adobe.com/adobe-release/adobe-release-$(uname -m)-1.0-1.noarch.rpm
sudo rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-adobe-linux
- Install the required packages:
sudo yum check-update
sudo yum groupinstall "Sound and Video"
- Install flash plugin:
sudo yum install flash-plugin nspluginwrapper curl
git: discard local changes
- To discard all local uncommitted changes:
git reset --hard
which is equivalent to:git reset --hard HEAD
- To discard the latest local commit(move HEAD back by one commit):
git reset --hard HEAD^
or move HEAD by 3 commits:git reset --hard HEAD~3
Establish a SSH tunnel to access a remote server behind firewall
- To start the tunnel (running background):
ssh -L ${LOCAL_HOST}:${LOCAL_PORT}:${REMOTE_HOST}:${REMOTE_PORT} ${GATEWAY_USER}@${GATEWAY_HOST} -N -f -M -S ${SSH_CTRL_PATH}
for example:ssh -L localhost:3389:192.168.20.10:3389 john@gateway-ssh-server.johns.org -N -f -M -S /tmp/ssh-tunnel.3389
The command above starts the ssh tunnel (and keeps the ssh process running background.) After the tunnel is established, you can access the remote server port(192.168.20.10) via local port(localhost:3389). - To stop the tunnel (running background):
ssh -S ${SSH_CTRL_PATH} -O exit ${GATEWAY_USER}@${GATEWAY_HOST}
for example:ssh -S /tmp/ssh-tunnel.3389 -O exit john@gateway-ssh-server.johns.org
Ubuntu 12.04 LTS: create application launcher/shorcut
Run the follow command in Terminal:
gnome-desktop-item-edit ~/Desktop/myshortcut.desktop --create-newwhere ~/Desktop/myshortcut.desktop is the launcher file name.
Install Skype on Ubuntu Linux 12.04 LTS 64 bit
- Install ia32-libs:
sudo apt-get install ia32-libs
- Install sni-qt and sni-qt:i386(which is required to enable skype system tray icon):
sudo apt-get install sni-qt sni-qt:i386
- Download Skype:
wget http://download.skype.com/linux/skype-ubuntu-precise_4.2.0.11-1_i386.deb
- Install Skype:
sudo dpkg -i skype-ubuntu-precise_4.2.0.11-1_i386.deb
Ubuntu One client behind proxy
If your computer is behind a proxy/firewall, your Ubuntu One File Sync will not work unless you install ubuntuone-client-proxy package:
sudo apt-get install ubuntuone-client-proxy
Unix/Linux/Mac OS: release/free TCP/IP port
- check which process is listening to (using) the port:
fuser 8080/tcp
It will returns the pid of the process, like below:8081/tcp: 7391
, you can then use the process id to find which application is using the port:ps aux | grep 7391
- to kill the process that is using the port, you can simply do:
sudo fuser -k 8080/tcp
Install latest Firefox on CentOS Linux
- Download the latest Firefox from http://download.cdn.mozilla.net/pub/mozilla.org/firefox/releases/. The current (British English, 64 bit) one is firefox-23.0.1.tar.bz2:
cd ~/Downloads; wget http://download.cdn.mozilla.net/pub/mozilla.org/firefox/releases/23.0.1/linux-x86_64/en-GB/firefox-23.0.1.tar.bz2
- Extract it into /opt:
cd /opt; sudo tar jxvf ~/Downloads/firefox-*.tar.bz2
- To start in Terminal:
/opt/firefox/firefox
You can also create launcher for it... - Link the plugin directory:
cd ~/.mozilla; ln -s /usr/lib64/mozilla/plugins
Install Java 7 on Ubuntu 12.04 LTS
- Add webupd8team repository:
sudo apt-get install python-software-properties sudo add-apt-repository ppa:webupd8team/java sudo apt-get update
- Install oracle-java7-installer:
sudo apt-get install oracle-java7-installer
- Set Java 7 as default:
sudo update-java-alternatives -s java-7-oracle
- Set up Java plugins for browsers:
if [[ $(uname -a) == "x86_64" ]]; then machine=amd64; else machine=i386; fi; sudo update-alternatives --install /usr/lib/mozilla/plugins/libjavaplugin.so mozilla-javaplugin.so /usr/lib/jvm/java-7-oracle/jre/lib/${machine}/libnpjp2.so $((`LANG=C update-alternatives --display mozilla-javaplugin.so | grep ^/ | sed -e 's/.* //g' | sort -n | tail -1`+1))
See also
- https://docs.google.com/document/d/1DzjvNgiF8OMUD0L6LdvOkvDcc6wYIk1iPFCkoW2pPf4/edit
Install Chromium/Chrome browser on CentOS
You can run the following command to add the repository and install the chromium package:
cd /etc/yum.repos.d; sudo wget http://people.centos.org/hughesjr/chromium/6/chromium-el6.repo sudo yum update sudo yum install chromium
NOTE:
if you have yum-plugin-priorities installed, you need tosudo echo "priority=1" >> /etc/yum.repos.d/chromium-el6.repoto set the repository priority.
See also
ATERM: change background colour and font
display bg-colour #000000
display font-name courier
display font-size 18
display save
Favorite Linux Applications
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