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--- tutorials:bash [2010/07/31 01:04] – created chkuo
+++ tutorials:bash [2012/11/23 13:59] (current) – [.bashrc (Ubuntu)] hsu
@@ Line 4: / Line 4: @@
 ===== Sample Configuration Files =====
 ==== .bash_profile ====
-<file>
+<file bash .bash_profile>
 # .bash_profile
 # Get the aliases and functions
@@ Line 12: / Line 12: @@
 </file>
-==== .bashrc ====
+==== .bashrc (Mac OS X) ====
-<file>
+<file bash .bashrc>
 # .bashrc
 # User specific aliases and functions
@@ Line 21: / Line 21: @@
 # User specific environment and startup programs
 export PATH="${PATH}:/usr/local/bin:~/bin:~/script"
+# enable color support
+alias grep='grep --color=auto'
 # shell command alias
@@ Line 29: / Line 32: @@
 alias lm='ls -lFG | more'
 alias ll='ls -alFG | more'
+</file>
-# short cut to active project directory
+# under home directory,  rename the initial .bashrc to .bashrc_v2
+mv .bashrc .bashrc_v2
+# create anyother .bashrc file and paste the below script into it.
+nano .bashrc
+==== .bashrc (Ubuntu) ====
+<file bash .bashrc>
+# .bashrc
+# User specific aliases and functions
+# set prompt, format = 'user@host[pwd]$ ', for example: 'chkuo@oak[~]$ '
+PS1='\[\e[1;34m\]\u\[\e[0m\]\[\e[1;33m\]@\[\e[0m\]\[\e[1;31m\]\h\[\e[0m\][\w]\[\e[1;32m\]\$\[\e[0m\] '
+# User specific environment and startup programs
+export PATH="${PATH}:/usr/local/bin:~/bin:~/script"
+export PERL5LIB="${PERL5LIB}:/usr/local/bin"
+# enable color support of ls and also add handy aliases
+if [ -x /usr/bin/dircolors ]; then
+    test -r ~/.dircolors && eval "$(dircolors -b ~/.dircolors)" || eval "$(dircolors -b)"
+    alias ls='ls --color=auto'
+    #alias dir='dir --color=auto'
+    #alias vdir='vdir --color=auto'
+    alias grep='grep --color=auto'
+    alias fgrep='fgrep --color=auto'
+    alias egrep='egrep --color=auto'
+fi
+# some more ls aliases
+alias l='ls -lF'
+alias ll='ls -alF'
+alias lm='ls -alF | more'
+# shell command alias
+alias .='pwd'
+alias ..='cd ..'
+alias cd..='cd ..'
+# short cut
 alias pls='cd ~/plscript/'
 alias sc='cd /scratch/$USER/'
 # ssh alias for connecting to other machines
-    # Academia Sinica
+	# Academia Sinica
-        # maple
+		# hickory
-        export MAPLE='140.109.56.170'
+		export HICKORY='140.109.56.179'
-        alias maple='ssh $MAPLE'
+		alias hickory='ssh $HICKORY'
-        # oak
-        export OAK='140.109.56.171'
-        alias oak='ssh $OAK'
 </file>
-===== ssh key =====
-==== Generate key-pairs ====
-<code bash>
-ssh-keygen -t 'rsa' -b 2048
-</code>
-==== Auto-authentication ====
-Append '~/.ssh/id_rsa.pub' to remote host '~/.ssh/authorized_keys'
-===== Remote reboot =====
-In the case that you need to reboot a machine remotely, login through ''ssh'' and use the following command:
-<code bash>
-sudo shutdown -r now
-</code>
 ===== Shell Scripts =====
 ==== Pack Up Directories ====
-<file>
+<file bash tz>
 #!/bin/sh
 for x
@@ Line 71: / Line 97: @@
 </file>
+===== Disk permissions =====
+Useful for checking eternal hard drive (in Mac OS X)
+==== Check ====
+<code bash>
+sudo vsdbutil -c /Volumes/MyDrive
+</code>
+==== Enable ====
+<code bash>
+sudo vsdbutil -a /Volumes/MyDrive
+</code>