~$ sudo sh ./10.1sp1_quartus_free_linuxx.sh
Creating directory 10.1sp1_quartus_free_linux
Verifying archive integrity... All good.
Uncompressing Quartus II Web Edition (Free).....................................................................................................................................................................................................
Fontconfig error: "conf.d", line 1: no element found
Fontconfig warning: line 73: unknown element "cachedir"
Fontconfig warning: line 74: unknown element "cachedir"
No protocol specified
altera_installer_gui: cannot connect to X server :0

~$ sudo  ./10.1sp1_quartus_free_linuxx.sh
Creating directory 10.1sp1_quartus_free_linux
Verifying archive integrity... All good.
Uncompressing Quartus II Web Edition (Free).....................................................................................................................................................................................................
Fontconfig error: "conf.d", line 1: no element found
Fontconfig warning: line 73: unknown element "cachedir"
Fontconfig warning: line 74: unknown element "cachedir"
No protocol specified
altera_installer_gui: cannot connect to X server :0

~/10.1sp1_quartus_free_linux$ sudo sh ./setup
sh: ./setup: No such file or directory
ecinx@ecinx-ThinkPad-X201-Tablet:~/10.1sp1_quartus_free_linux$ cd altera_installer/
ecinx@ecinx-ThinkPad-X201-Tablet:~/10.1sp1_quartus_free_linux/altera_installer$ sudo setup
sudo: setup: command not found
ecinx@ecinx-ThinkPad-X201-Tablet:~/10.1sp1_quartus_free_linux/altera_installer$ sudo ./setup
Welcome to Altera Software Installer
Copyright (c) Altera Corporation 2010

Starting GUI. If nothing shows up, or you don't have an X display, run:
   ./setup --help
for commandline usage.
NOTE: All output has been redirected to /tmp/altera_setup.log

ecinx@ecinx-ThinkPad-X201-Tablet:~/10.1sp1_quartus_free_linux/altera_installer$ sudo ./setup --help
./setup: line 61: exec: altera_installer_cmd: not found
ecinx@ecinx-ThinkPad-X201-Tablet:~/10.1sp1_quartus_free_linux/altera_installer$ mv setup ~/10.1sp1_quartus_free_linux/altera_installer/bin/
mv: cannot move `setup' to `/home/ecinx/10.1sp1_quartus_free_linux/altera_installer/bin/setup': Permission denied
ecinx@ecinx-ThinkPad-X201-Tablet:~/10.1sp1_quartus_free_linux/altera_installer$ sudo mv setup ~/10.1sp1_quartus_free_linux/altera_installer/bin/
ecinx@ecinx-ThinkPad-X201-Tablet:~/10.1sp1_quartus_free_linux/altera_installer$ cd bin/
ecinx@ecinx-ThinkPad-X201-Tablet:~/10.1sp1_quartus_free_linux/altera_installer/bin$ sudo ./setup --help
./setup: line 61: exec: altera_installer_cmd: not found