diff --git a/tools/ci/linux/ci.sh b/tools/ci/linux/ci.sh
index 6b7b959b1..84d563293 100644
--- a/tools/ci/linux/ci.sh
+++ b/tools/ci/linux/ci.sh
@@ -24,7 +24,7 @@ sudo sysctl -w net.ipv4.tcp_tw_reuse=1
 #####################################
 
 function build_docs_pdf {
-    mkdir -p build; cd build; rm -rf *
+    rm -rf build; mkdir -p build; cd build
     cmake -DCMAKE_BUILD_TYPE=Release \
           -DUA_BUILD_EXAMPLES=ON \
           -DUA_FORCE_WERROR=ON \
@@ -37,7 +37,7 @@ function build_docs_pdf {
 #######################
 
 function build_tpm_tool {
-    mkdir -p build; cd build; rm -rf *
+    rm -rf build; mkdir -p build; cd build
     cmake -DUA_BUILD_TOOLS=ON \
           -DUA_ENABLE_ENCRYPTION=MBEDTLS \
           -DUA_ENABLE_ENCRYPTION_TPM2=ON \
@@ -52,7 +52,7 @@ function build_tpm_tool {
 #########################
 
 function build_release {
-    mkdir -p build; cd build; rm -rf *
+    rm -rf build; mkdir -p build; cd build
     cmake -DBUILD_SHARED_LIBS=ON \
           -DUA_ENABLE_ENCRYPTION=MBEDTLS \
           -DUA_ENABLE_SUBSCRIPTIONS_EVENTS=ON \
@@ -64,7 +64,7 @@ function build_release {
 }
 
 function build_release_amalgamation {
-    mkdir -p build; cd build; rm -rf *
+    rm -rf build; mkdir -p build; cd build
     cmake -DCMAKE_BUILD_TYPE=None \
           -DUA_ENABLE_AMALGAMATION=ON \
           -DUA_NAMESPACE_ZERO=FULL \
@@ -83,7 +83,7 @@ function build_release_amalgamation {
 ######################
 
 function build_amalgamation {
-    mkdir -p build; cd build; rm -rf *
+    rm -rf build; mkdir -p build; cd build
     cmake -DCMAKE_BUILD_TYPE=Debug \
           -DUA_ENABLE_AMALGAMATION=ON \
           -DUA_ENABLE_SUBSCRIPTIONS_EVENTS=ON \
@@ -97,7 +97,7 @@ function build_amalgamation {
 }
 
 function build_amalgamation_mt {
-    mkdir -p build; cd build; rm -rf *
+    rm -rf build; mkdir -p build; cd build
     cmake -DCMAKE_BUILD_TYPE=Debug \
           -DUA_ENABLE_AMALGAMATION=ON \
           -DUA_ENABLE_SUBSCRIPTIONS_EVENTS=ON \
@@ -142,7 +142,7 @@ function unit_tests {
     else
         COVERAGE=OFF
     fi
-    mkdir -p build; cd build; rm -rf *
+    rm -rf build; mkdir -p build; cd build
     cmake -DCMAKE_BUILD_TYPE=Debug \
           -DUA_BUILD_EXAMPLES=ON \
           -DUA_BUILD_UNIT_TESTS=ON \
@@ -166,7 +166,7 @@ function unit_tests {
 }
 
 function unit_tests_lwip {
-    mkdir -p build; cd build; rm -rf *
+    rm -rf build; mkdir -p build; cd build
     cmake -DUA_ARCHITECTURE="posix-lwip" \
           -DCMAKE_BUILD_TYPE=Debug \
           -DUA_BUILD_EXAMPLES=ON \
@@ -182,7 +182,7 @@ function unit_tests_lwip {
 }
 
 function unit_tests_32 {
-    mkdir -p build; cd build; rm -rf *
+    rm -rf build; mkdir -p build; cd build
     cmake -DCMAKE_BUILD_TYPE=Debug \
           -DUA_BUILD_EXAMPLES=ON \
           -DUA_BUILD_UNIT_TESTS=ON \
@@ -201,7 +201,7 @@ function unit_tests_32 {
 }
 
 function unit_tests_nosub {
-    mkdir -p build; cd build; rm -rf *
+    rm -rf build; mkdir -p build; cd build
     cmake -DCMAKE_BUILD_TYPE=Debug \
           -DUA_BUILD_EXAMPLES=ON \
           -DUA_BUILD_UNIT_TESTS=ON \
@@ -217,7 +217,7 @@ function unit_tests_nosub {
 }
 
 function unit_tests_diag {
-    mkdir -p build; cd build; rm -rf *
+    rm -rf build; mkdir -p build; cd build
     cmake -DCMAKE_BUILD_TYPE=Debug \
           -DUA_BUILD_EXAMPLES=ON \
           -DUA_BUILD_UNIT_TESTS=ON \
@@ -238,7 +238,7 @@ function unit_tests_diag {
 }
 
 function unit_tests_mt {
-    mkdir -p build; cd build; rm -rf *
+    rm -rf build; mkdir -p build; cd build
     cmake -DCMAKE_BUILD_TYPE=Debug \
           -DUA_MULTITHREADING=200 \
           -DUA_BUILD_EXAMPLES=ON \
@@ -254,7 +254,7 @@ function unit_tests_mt {
 }
 
 function unit_tests_alarms {
-    mkdir -p build; cd build; rm -rf *
+    rm -rf build; mkdir -p build; cd build
     cmake -DCMAKE_BUILD_TYPE=Debug \
           -DUA_BUILD_EXAMPLES=ON \
           -DUA_BUILD_UNIT_TESTS=ON \
@@ -274,7 +274,7 @@ function unit_tests_alarms {
 }
 
 function unit_tests_encryption {
-    mkdir -p build; cd build; rm -rf *
+    rm -rf build; mkdir -p build; cd build
     cmake -DCMAKE_BUILD_TYPE=Debug \
           -DUA_BUILD_EXAMPLES=ON \
           -DUA_ENABLE_GDS_PUSHMANAGEMENT=ON \
@@ -291,7 +291,7 @@ function unit_tests_encryption {
 }
 
 function unit_tests_encryption_mbedtls_pubsub {
-    mkdir -p build; cd build; rm -rf *
+    rm -rf build; mkdir -p build; cd build
     cmake -DCMAKE_BUILD_TYPE=Debug \
           -DUA_BUILD_EXAMPLES=ON \
           -DUA_BUILD_UNIT_TESTS=ON \
@@ -308,7 +308,7 @@ function unit_tests_encryption_mbedtls_pubsub {
 }
 
 function unit_tests_pubsub_sks {
-    mkdir -p build; cd build; rm -rf *
+    rm -rf build; mkdir -p build; cd build
     cmake -DCMAKE_BUILD_TYPE=Debug \
           -DUA_NAMESPACE_ZERO=FULL \
           -DUA_BUILD_EXAMPLES=ON \
@@ -331,7 +331,7 @@ function unit_tests_pubsub_sks {
 ##########################################
 
 function unit_tests_valgrind {
-    mkdir -p build; cd build; rm -rf *
+    rm -rf build; mkdir -p build; cd build
     cmake -DCMAKE_BUILD_TYPE=Debug \
           -DUA_BUILD_UNIT_TESTS=ON \
           -DUA_ENABLE_ENCRYPTION=$1 \
@@ -355,7 +355,7 @@ function unit_tests_valgrind {
 ##########################
 
 function run_examples {
-    mkdir -p build; cd build; rm -rf *
+    rm -rf build; mkdir -p build; cd build
 
     # create certificates for the examples
     python3 ../tools/certs/create_self-signed.py -c server
@@ -400,7 +400,7 @@ function run_examples {
 ########################################
 
 function examples_valgrind {
-    mkdir -p build; cd build; rm -rf *
+    rm -rf build; mkdir -p build; cd build
 
     # create certificates for the examples
     python3 ../tools/certs/create_self-signed.py -c server
@@ -447,7 +447,7 @@ function examples_valgrind {
 
 function build_clang_analyzer {
     local version=$1
-    mkdir -p build; cd build; rm -rf *
+    rm -rf build; mkdir -p build; cd build
     scan-build-$version cmake -DCMAKE_BUILD_TYPE=Debug \
           -DUA_BUILD_EXAMPLES=ON \
           -DUA_BUILD_UNIT_TESTS=ON \
@@ -474,7 +474,7 @@ function build_clang_analyzer {
 ########################################
 
 function build_all_companion_specs {
-    mkdir -p build; cd build; rm -rf *
+    rm -rf build; mkdir -p build; cd build
     cmake -DCMAKE_BUILD_TYPE=Debug \
           -DUA_BUILD_EXAMPLES=ON \
           -DUA_BUILD_UNIT_TESTS=ON \