Use uname to determine operating system with -o switch.

src/main/resources/scripts/gvm-init.sh

@@ -17,7 +17,7 @@
 #
 
 export GVM_VERSION="@GVM_VERSION@"
-export GVM_PLATFORM=$(uname)
+export GVM_PLATFORM=$(uname -o)
 
 if [ -z "${GVM_SERVICE}" ]; then
     export GVM_SERVICE="@GVM_SERVICE@"

src/main/resources/scripts/install.sh

@@ -18,7 +18,6 @@
 # Global variables
 GVM_SERVICE="@GVM_SERVICE@"
 GVM_VERSION="@GVM_VERSION@"
-GVM_PLATFORM=$(uname)
 GVM_DIR="$HOME/.gvm"
 
 # Local variables
@@ -34,6 +33,8 @@ gvm_bash_profile="${HOME}/.bash_profile"
 gvm_profile="${HOME}/.profile"
 gvm_bashrc="${HOME}/.bashrc"
 gvm_zshrc="${HOME}/.zshrc"
+gvm_platform=$(uname -o)
+
 gvm_init_snippet=$( cat << EOF
 #THIS MUST BE AT THE END OF THE FILE FOR GVM TO WORK!!!
 [[ -s "${GVM_DIR}/bin/gvm-init.sh" && ! \$(which gvm-init.sh) ]] && source "${GVM_DIR}/bin/gvm-init.sh"

src/main/resources/scripts/selfupdate.sh

@@ -23,7 +23,7 @@ if [ -z "${GVM_DIR}" ]; then
 	GVM_DIR="$HOME/.gvm"
 fi
 
-gvm_platform=$(uname)
+gvm_platform=$(uname -o)
 gvm_bin_folder="${GVM_DIR}/bin"
 gvm_tmp_zip="${GVM_DIR}/tmp/res-${GVM_VERSION}.zip"
 gvm_stage_folder="${GVM_DIR}/tmp/stage"