fixes #3 codacy shell script issues

active_hours.sh

@@ -1,3 +1,4 @@
+#!/usr/bin/env bash
 git log --author="Morgan" \
         --format="%ad" \
         --date="format:%H" |\

count_commits.sh

@@ -1,2 +1,2 @@
-#/usr/bin/env bash
+#!/usr/bin/env bash
 git rev-list HEAD --count

count_links.sh

@@ -1,3 +1,3 @@
-#/usr/bin/env bash
+#!/usr/bin/env bash
 BASEDIR=$(dirname "$0")
-cat "$BASEDIR/README.md" | cut -d'(' -f2 | cut -d')' -f1 | egrep "^http*" | sort -u | wc -l | tr -d ' '
+cut -d'(' -f2 "$BASEDIR/README.md" | cut -d')' -f1 | grep -E "^http*" | sort -u | wc -l | tr -d ' '

top_domains.sh

@@ -1,3 +1,3 @@
-#/usr/bin/env bash
+#!/usr/bin/env bash
 BASEDIR=$(dirname "$0")
-cat "$BASEDIR/README.md" | cut -d'(' -f2 | cut -d')' -f1 | egrep "^http*" | awk -F/ '{print $3}' | sort  | uniq -c | sort -n
+cut -d'(' -f2 "$BASEDIR/README.md" | cut -d')' -f1 | grep -E "^http*" | awk -F/ '{print $3}' | sort  | uniq -c | sort -n

top_extensions.sh

@@ -1,3 +1,3 @@
-#/usr/bin/env bash
+#!/usr/bin/env bash
 BASEDIR=$(dirname "$0")
-cat "$BASEDIR/README.md" | cut -d'(' -f2 | cut -d')' -f1 | egrep "^http*" | awk -F/ '{print $3}' | sed -E -e 's_.*\.([^\.]+)$_\1_g' | sort  | uniq -c | sort -n
+cut -d'(' -f2 "$BASEDIR/README.md" | cut -d')' -f1 | grep -E "^http*" | awk -F/ '{print $3}' | sed -E -e "s_.*\.([^\.]+)\$_\1_g" | sort  | uniq -c | sort -n