rename file

pert

 #!/bin/bash
+set -o nounset
+set -o errexit
 
-. pert.sh
+function _echo 
+{
+    echo -e "$1"
+}
+
+function _echoB
+{
+    _echo "\033[1m$1\033[0m"
+}
+
+function _help
+{
+    _echo ""
+    _echoB "A command line PERT calculator for quick estimates."
+    _echo "Comma separated task list in the form \"1,2,12 4,5,9 2,3,6\", where whitespace separates tasks."
+    _echo ""
+    _echoB "Usage:"
+    _echo "\tpert.sh [optimistic,realistic,pessimistic]"
+    _echo ""
+    _echoB "Example:"
+    _echo "\tpert.sh 1,3,4"
+    _echo "\tpert.sh 10,15,20 5,7,10"
+    _echo "\tpert.sh \"1,2,3\" \"15,17,20\""
+    _echo ""
+}
+
+scale=2
+function _calc 
+{
+    _echo "scale=$scale; $@" | bc -l | sed 's/^\./0./'
+}
+
+width=88
+function _divider
+{
+    divider=------------------------------
+    divider=" +"$divider$divider$divider"+"
+    printf "%$width.${width}s+\n" "$divider"
+}
+
+readonly format=" | %-12s |%11s |%10s |%12s |%9s |%9s |%9s |\n"
+function _header
+{
+    _echo ""
+    _echoB "Tasks"
+    _echo ""
+    _divider
+    printf "$format" "#" "optimistic" "realistic" "pessimistic" "duration" "risk" "variance"
+    _divider
+}
+
+function pert_table
+{
+    _header
+    
+    counter=0
+    total_estimate=0
+    total_standard_deviation=0
+    total_variance=0
+    for var in "$@"; do
+        
+        # counter iterator
+        counter=$[$counter +1]
+    
+        # split values
+        IFS=',' read -ra ADDR <<< "$var"
+        
+        # optimistic value
+        o="0"
+        if [ -n "${ADDR[0]-}" ]; then
+            o=${ADDR[0]}
+        fi
+        
+        # realistic value
+        r="0"
+        if [ -n "${ADDR[1]-}" ]; then
+            r=${ADDR[1]}
+        fi
+        
+        # pessimistic value
+        p="0"
+        if [ -n "${ADDR[2]-}" ]; then
+            p=${ADDR[2]}
+        fi
+        
+        # check values
+        if [ -z "$o" ] || [ -z "$r" ] || [ -z "$p" ]; then
+            printf "$format" "$counter. bad input" $o $r $p
+        else
+        
+            # pert estimate
+            pert_estimate=$(_calc "($o+4*$r+$p)/6")
+            total_estimate=$(_calc "$total_estimate + $pert_estimate") 
+            
+            # standard deviation
+            standard_deviation=$(_calc "($p-$o)/6")
+            total_standard_deviation=$(_calc "$total_standard_deviation + $standard_deviation")
+    
+            # variance
+            variance=$(_calc "$standard_deviation * $standard_deviation")
+            total_variance=$(_calc "$total_variance + $variance")
+        
+            # row        
+            printf "$format" "$counter. task" $o $r $p $pert_estimate $standard_deviation $variance
+        fi
+    
+    done
+    
+    _divider
+    
+    if [[ $total_estimate > 0 ]]; then
+        
+        # footer summary       
+        printf "$format" "summary" "-" "-" "-" $total_estimate $total_standard_deviation $total_variance
+        _divider
+        
+        _echo ""
+        _echoB "Three point estimates"
+        _echo ""
+        
+        width=42 
+        tpeformat=" | %-13s |%11s |%10s |\n"
+        
+        _divider
+        printf "$tpeformat" "confidence"
+        _divider
+        printf "$tpeformat" "1 Sigma - 68%" $(_calc "$total_estimate - $total_standard_deviation") $(_calc "$total_estimate + $total_standard_deviation")
+        printf "$tpeformat" "2 Sigma - 95%" $(_calc "$total_estimate - 2 * $total_standard_deviation") $(_calc "$total_estimate + 2 * $total_standard_deviation")
+        printf "$tpeformat" "3 Sigma - 99%" $(_calc "$total_estimate - 3 * $total_standard_deviation") $(_calc "$total_estimate + 3 * $total_standard_deviation")
+        _divider
+    
+    fi
+    
+    _echo ""
+}
+
+
+# main
+if [ $# -eq 0 ]; then
+    _help
+    exit 1
+fi
+
+case "$1" in
+  *help|*h)
+    _help
+    exit 1
+    ;;
+  *)
+    pert_table $@
+    exit 0
+    ;;
+esac

pert.sh

-#!/bin/bash
-set -o nounset
-set -o errexit
-
-function _echo 
-{
-    echo -e "$1"
-}
-
-function _echoB
-{
-    _echo "\033[1m$1\033[0m"
-}
-
-function _help
-{
-    _echo ""
-    _echoB "A command line PERT calculator for quick estimates."
-    _echo "Comma separated task list in the form \"1,2,12 4,5,9 2,3,6\", where whitespace separates tasks."
-    _echo ""
-    _echoB "Usage:"
-    _echo "\tpert.sh [optimistic,realistic,pessimistic]"
-    _echo ""
-    _echoB "Example:"
-    _echo "\tpert.sh 1,3,4"
-    _echo "\tpert.sh 10,15,20 5,7,10"
-    _echo "\tpert.sh \"1,2,3\" \"15,17,20\""
-    _echo ""
-}
-
-scale=2
-function _calc 
-{
-    _echo "scale=$scale; $@" | bc -l | sed 's/^\./0./'
-}
-
-width=88
-function _divider
-{
-    divider=------------------------------
-    divider=" +"$divider$divider$divider"+"
-    printf "%$width.${width}s+\n" "$divider"
-}
-
-readonly format=" | %-12s |%11s |%10s |%12s |%9s |%9s |%9s |\n"
-function _header
-{
-    _echo ""
-    _echoB "Tasks"
-    _echo ""
-    _divider
-    printf "$format" "#" "optimistic" "realistic" "pessimistic" "duration" "risk" "variance"
-    _divider
-}
-
-function pert_table
-{
-    _header
-    
-    counter=0
-    total_estimate=0
-    total_standard_deviation=0
-    total_variance=0
-    for var in "$@"; do
-        
-        # counter iterator
-        counter=$[$counter +1]
-    
-        # split values
-        IFS=',' read -ra ADDR <<< "$var"
-        
-        # optimistic value
-        o="0"
-        if [ -n "${ADDR[0]-}" ]; then
-            o=${ADDR[0]}
-        fi
-        
-        # realistic value
-        r="0"
-        if [ -n "${ADDR[1]-}" ]; then
-            r=${ADDR[1]}
-        fi
-        
-        # pessimistic value
-        p="0"
-        if [ -n "${ADDR[2]-}" ]; then
-            p=${ADDR[2]}
-        fi
-        
-        # check values
-        if [ -z "$o" ] || [ -z "$r" ] || [ -z "$p" ]; then
-            printf "$format" "$counter. bad input" $o $r $p
-        else
-        
-            # pert estimate
-            pert_estimate=$(_calc "($o+4*$r+$p)/6")
-            total_estimate=$(_calc "$total_estimate + $pert_estimate") 
-            
-            # standard deviation
-            standard_deviation=$(_calc "($p-$o)/6")
-            total_standard_deviation=$(_calc "$total_standard_deviation + $standard_deviation")
-    
-            # variance
-            variance=$(_calc "$standard_deviation * $standard_deviation")
-            total_variance=$(_calc "$total_variance + $variance")
-        
-            # row        
-            printf "$format" "$counter. task" $o $r $p $pert_estimate $standard_deviation $variance
-        fi
-    
-    done
-    
-    _divider
-    
-    if [[ $total_estimate > 0 ]]; then
-        
-        # footer summary       
-        printf "$format" "summary" "-" "-" "-" $total_estimate $total_standard_deviation $total_variance
-        _divider
-        
-        _echo ""
-        _echoB "Three point estimates"
-        _echo ""
-        
-        width=42 
-        tpeformat=" | %-13s |%11s |%10s |\n"
-        
-        _divider
-        printf "$tpeformat" "confidence"
-        _divider
-        printf "$tpeformat" "1 Sigma - 68%" $(_calc "$total_estimate - $total_standard_deviation") $(_calc "$total_estimate + $total_standard_deviation")
-        printf "$tpeformat" "2 Sigma - 95%" $(_calc "$total_estimate - 2 * $total_standard_deviation") $(_calc "$total_estimate + 2 * $total_standard_deviation")
-        printf "$tpeformat" "3 Sigma - 99%" $(_calc "$total_estimate - 3 * $total_standard_deviation") $(_calc "$total_estimate + 3 * $total_standard_deviation")
-        _divider
-    
-    fi
-    
-    _echo ""
-}
-
-
-# main
-if [ $# -eq 0 ]; then
-    _help
-    exit 1
-fi
-
-case "$1" in
-  *help|*h)
-    _help
-    exit 1
-    ;;
-  *)
-    pert_table $@
-    exit 0
-    ;;
-esac