yu.ning

这是一个shell的实现程序。其中System的实现参考了linux的。不好意思哈。

BASH=/bin/sh
BASH_ARGC=()
BASH_ARGV=()
BASH_ENV=//home/nyu/.bashrc
BASH_EXECUTION_STRING='set > yu.ning'
BASH_LINENO=()
BASH_SOURCE=()
BASH_VERSINFO=([0]="3" [1]="00" [2]="15" [3]="1" [4]="release" [5]="i386-redhat-linux-gnu")
BASH_VERSION='3.00.15(1)-release'
CLASSPATH=/var1/opt/jogl/jogl.jar:/var1/opt/oracle/classes12.zip:/var1/opt/java/jre/lib/ext:.
COLORTERM=gnome-terminal
CVSIGNORE='*.class:*.class~:*.java~:.nbattrs:web.warContent'
DBUS_SESSION_BUS_ADDRESS=unix:abstract=/tmp/dbus-WnywGfaTOz
DESKTOP_SESSION=default
DIRSTACK=()
DISPLAY=:0.0
EDITOR=vi
EUID=1149
GDMSESSION=default
GNOME_DESKTOP_SESSION_ID=Default
GNOME_KEYRING_SOCKET=/tmp/keyring-B59YRR/socket
GROUPS=()
GTK_RC_FILES=/etc/gtk/gtkrc:/home/nyu/.gtkrc-1.2-gnome2
G_BROKEN_FILENAMES=1
HISTSIZE=1000
HOME=/home/nyu
HOSTNAME=adm2pc4.cs.siu.edu
HOSTTYPE=i386
IFS=' 	
'
INPUTRC=/etc/inputrc
JAVA_HOME=/var1/opt/java
JDK_HOME=/var1/opt/java
KDEDIR=/usr
LANG=en_US.UTF-8
LC_ALL=C
LD_LIBRARY_PATH=/var1/opt/jogl:/var1/opt/jmonkey/jme-physics/lib:/var1/opt/jmonkey/lwjgl/native/linux:/var1/opt/mesa/lib:/var1/opt/glut/lib:/var1/opt/glib/lib
LESSOPEN='|/usr/bin/lesspipe.sh %s'
LOGNAME=nyu
LS_COLORS=
MACHTYPE=i386-redhat-linux-gnu
MAIL=/var/spool/mail/nyu
MANPATH=/var1/opt/subversion/man:/var1/opt/valgrind/man:/var1/opt/java/man:/var1/opt/povray/man:/usr/share/man:/usr/man:/usr/local/share/man:/usr/local/man:/usr/X11R6/man
MITSCHEME_LIBRARY_PATH=/var1/opt/scheme/lib/mit-scheme
OPTERR=1
OPTIND=1
OSTYPE=linux-gnu
PATH=/var1/opt/blender:/var1/opt/eclipse:/var1/opt/java/bin:/var1/opt/pine/bin:/var1/opt/a2ps/bin:/var1/opt/bin:/usr/kerberos/bin:/usr/bin:/bin:/usr/X11R6/bin:.
PKG_CONFIG_PATH=/var1/opt/glib/lib/pkgconfig:/var1/opt/pango/lib/pkgconfig:/var1/opt/cairo/lib/pkgconfig:/var1/opt/atk/lib/pkgconfig:/usr/lib/pkgconfig
POSIXLY_CORRECT=y
PPID=4944
PS4='+ '
PWD=/home/nyu/myfiles/myshell
QTDIR=/usr/lib/qt-3.3
SESSION_MANAGER=local/adm2pc4.cs.siu.edu:/tmp/.ICE-unix/4773
SHELL=/bin/bash
SHELLOPTS=braceexpand:hashall:interactive-comments:posix
SHLVL=3
SSH_AGENT_PID=4825
SSH_ASKPASS=/usr/libexec/openssh/gnome-ssh-askpass
SSH_AUTH_SOCK=/tmp/ssh-zKvMwj4773/agent.4773
TERM=xterm
UID=1149
USER=nyu
USERNAME=nyu
WINDOWID=37748816
XAUTHORITY=/tmp/.gdmTFJRQv
_=sh
parent=/home/nyu/myfiles/myshell
shell=/home/nyu/myfiles/myshell