removed curl dependancy

README.md

@@ -15,15 +15,15 @@ Options:
 - install specific version: `-i VERSION`
 - automatically `sudo` install to /usr/local/bin: `-a`
   - prevents user prompt asking for install destination
-  - user must enter sudo password unless NOPASSWD is enabled
-  - uncomment line 12 to make this the default behavior (`sudoInstall=true`)
+  - user will still need to enter sudo password unless NOPASSWD is enabled
+  - set as default behavior by uncommenting line 12 (`sudoInstall=true`)
 
 ### Installation with this Installer
 
 Download the installer and make executable
 
 ``` shell
-curl -LO https://raw.github.com/robertpeteuil/terraform-installer/master/terraform-install.sh
+wget https://raw.github.com/robertpeteuil/terraform-installer/master/terraform-install.sh
 chmod +x terraform-install.sh
 ```
 
@@ -39,7 +39,7 @@ Optional Parameters
 # -i = Install specific version
 ./terraform-install.sh -i 0.11.1
 
-# -a = Automatic sudo install to /usr/local/bin/
+# -a = Automatic sudo install to /usr/local/bin/  (no user prompt)
 ./terraform-install.sh -a
 ```
 
@@ -53,8 +53,7 @@ Optional Parameters
 ### System Requirements
 
 - System with Bash Shell (Linux, macOS, Windows Subsystem for Linux)
-- `curl`
-- `unzip` - terraform downloads in zip format
+- `unzip` - terraform downloads are in zip format
 
 ### Script Process Details
 

terraform-install.sh

@@ -12,7 +12,7 @@
 # sudoInstall=true
 
 scriptname=$(basename "$0")
-scriptbuildnum="1.1.3"
+scriptbuildnum="1.2.0"
 scriptbuilddate="2018-04-11"
 
 LATEST=$(wget -q -O- https://api.github.com/repos/hashicorp/terraform/releases/latest 2> /dev/null | awk '/tag_name/ {print $2}' | cut -d '"' -f 2 | cut -d 'v' -f 2)
@@ -65,7 +65,7 @@ fi
 # CREATE FILENAME AND DOWNLOAD LINK BASED ON GATHERED PARAMETERS
 FILENAME="terraform_${VERSION}_${OS}_${PROC}.zip"
 LINK="https://releases.hashicorp.com/terraform/${VERSION}/${FILENAME}"
-LINKVALID=$(curl -o /dev/null --silent --head --write-out '%{http_code}\n' "$LINK")
+LINKVALID=$(wget --spider -S "$LINK" 2>&1 | grep "HTTP/" | awk '{print $2}')
 
 # VERIFY LINK VALIDITY
 if [[ "$LINKVALID" != 200 ]]; then
@@ -113,7 +113,7 @@ mkdir -p "$UTILTMPDIR"
 cd "$UTILTMPDIR" || exit 1
 
 # DOWNLOAD AND EXTRACT
-curl -s -o "$FILENAME" "$LINK"
+wget -q "$LINK" -O "$FILENAME"
 unzip -qq "$FILENAME" || exit 1
 
 # COPY TO DESTINATION