small shell improvements

bash/.bashrc

@@ -8,7 +8,7 @@
 PS1='\n\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\n\$ '
 
 stty -ixon # Disable Ctrl-s and Ctrl-q
-HISTSIZE=10000
+HISTSIZE=1000
 
 if [ -f ~/.shell_aliases ]; then
     source ~/.shell_aliases
@@ -17,6 +17,6 @@ fi
 export PATH=$PATH:$HOME/.cargo/bin
 export PATH=$PATH:$HOME/.pub-cache/bin
 
-. "$HOME/.cargo/env"
+source "$HOME/.cargo/env"
 
 tmux

zsh/.config/shell_aliases

@@ -11,6 +11,7 @@ alias ..='cd ..'
 alias cp='cp -iv'
 alias mv='mv -iv'
 alias rm='rm -v'
+alias free='free -m'
 
 #alias ccat="highlight --out-format=ansi"
 alias p="nocorrect sudo pacman"

zsh/.zshrc

@@ -153,3 +153,29 @@ function precmd() {
   fi
 }
 
+
+#
+# # ex - archive extractor
+# # usage: ex <file>
+ex ()
+{
+  if [ -f $1 ] ; then
+    case $1 in
+      *.tar.bz2)   tar xjvf $1  ;;
+      *.tar.gz)    tar xzvf $1  ;;
+      *.bz2)       bunzip2 $1   ;;
+      *.rar)       unrar x $1   ;;
+      *.gz)        gunzip $1    ;;
+      *.tar)       tar xvf $1   ;;
+      *.tbz2)      tar xjvf $1  ;;
+      *.tgz)       tar xzvf $1  ;;
+      *.zip)       unzip $1     ;;
+      *.Z)         uncompress $1;;
+      *.7z)        7z x $1      ;;
+      *)           echo "'$1' cannot be extracted via ex()" ;;
+    esac
+  else
+    echo "'$1' is not a valid file"
+  fi
+}
+