From 68f8a4404efd293b4fcd00ea1c8876f8922b25c8 Mon Sep 17 00:00:00 2001
From: David Todd <dtodd@oceantechonline.com>
Date: Tue, 14 Jun 2016 14:13:17 -0500
Subject: [PATCH] Add shared functions

---
 shell/functions | 71 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 71 insertions(+)
 create mode 100644 shell/functions

diff --git a/shell/functions b/shell/functions
new file mode 100644
index 0000000..9924414
--- /dev/null
+++ b/shell/functions
@@ -0,0 +1,71 @@
+# Functions gathered from around the internet
+extract () { # Extracts most common compressed files
+        if [ -f $1 ] ; then
+                case $1 in
+                        *.tar.bz2)      tar xjf $1              ;;
+                        *.tar.gz)       tar xzf $1              ;;
+                        *.bz2)          bunzip2 $1              ;;
+                        *.rar)          rar x $1                ;;
+                        *.gz)           gunzip $1               ;;
+                        *.tar)          tar xf $1               ;;
+                        *.tbz2)         tar xjf $1              ;;
+                        *.tgz)          tar xzf $1              ;;
+                        *.zip)          unzip $1                ;;
+                        *.Z)            uncompress $1   ;;      
+                        *)                      echo "'$1' cannot be extracted via extract()" ;;
+                esac    
+        else    
+                echo "'$1' is not a valid file"
+        fi      
+}       
+maketar() { tar cvzf "${1%%/}.tar.gz"  "${1%%/}/"; }
+makezip() { zip -r "${1%%/}.zip" "$1" ; }
+psgrep() {
+        if [ ! -z $1 ] ; then
+                echo "Grepping for processes matching $1..."
+                ps aux | grep $1 | grep -v grep
+        else    
+                echo "!! Need name to grep for"
+        fi      
+}       
+gpass() { # Generates passwords
+        local l=$1
+        [ "$l" == "" ] && l=20
+        tr -dc A-Za-z0-9-!@%^*_ < /dev/urandom | head -c ${l} | xargs
+}     
+
+#up() { # Usage: up <Number of directories>. Blank for up one dir.
+#       local d=""
+#       limit=$1
+#       for((i=1 ; i <= limit ; i++)); do
+#               d=$d/..
+#    done
+#       d=$(echo $d | sed 's/^\///')
+#       if [ -z "$d" ]; then
+#               d=..
+#       fi
+#       cd $d
+#}
+#dirsize - finds directory sizes and lists them for the current directory
+dirsize (){
+        du -shx * .[a-zA-Z0-9_]* 2> /dev/null | \
+        egrep '^ *[0-9.]*[MG]' | sort -n > /tmp/list
+        egrep '^ *[0-9.]*M' /tmp/list
+        egrep '^ *[0-9.]*G' /tmp/list
+        rm -rf /tmp/list
+}       
+myps() { ps $@ -u $USER -o pid,%cpu,%mem,bsdtime,command ; }
+ii() {  # Get current host related info.
+    echo -e "\nYou are logged on ${BRed}$HOST"
+    echo -e "\n${BRed}Additionnal information:$NC " ; uname -a
+    echo -e "\n${BRed}Users logged on:$NC " ; w -hs | cut -d " " -f1 | sort | uniq
+    echo -e "\n${BRed}Current date :$NC " ; date
+    echo -e "\n${BRed}Machine stats :$NC " ; uptime
+    echo -e "\n${BRed}Memory stats :$NC " ; free
+    echo -e "\n${BRed}Diskspace :$NC " ; mydf / $HOME
+    echo -e "\n${BRed}Local IP Address :$NC" ; my_ip
+    echo -e "\n${BRed}Open connections :$NC "; netstat -pan --inet;
+    echo
+}  
+
+