chore: make command check silent

runtime/experiments/bimodal/install.sh

@@ -1,6 +1,6 @@
 #!/bin/bash
 
-if ! command -v hey; then
+if ! command -v hey > /dev/null; then
 	HEY_URL=https://hey-release.s3.us-east-2.amazonaws.com/hey_linux_amd64
 	wget $HEY_URL -O hey
 	chmod +x hey

runtime/experiments/bimodal/run.sh

@@ -19,7 +19,7 @@ source get_result_count.sh || exit 1
 source panic.sh || exit 1
 source path_join.sh || exit 1
 
-if ! command -v hey; then
+if ! command -v hey > /dev/null; then
 	echo "hey is not present."
 	exit 1
 fi

runtime/experiments/concurrency/install.sh

@@ -1,6 +1,6 @@
 #!/bin/bash
 
-if ! command -v hey; then
+if ! command -v hey > /dev/null; then
 	HEY_URL=https://hey-release.s3.us-east-2.amazonaws.com/hey_linux_amd64
 	wget $HEY_URL -O hey
 	chmod +x hey

runtime/experiments/concurrency/run.sh

@@ -15,7 +15,7 @@ source get_result_count.sh || exit 1
 source panic.sh || exit 1
 source path_join.sh || exit 1
 
-if ! command -v hey; then
+if ! command -v hey > /dev/null; then
 	echo "hey is not present."
 	exit 1
 fi

runtime/experiments/payload/install.sh

@@ -1,6 +1,6 @@
 #!/bin/bash
 
-if ! command -v hey; then
+if ! command -v hey > /dev/null; then
 	HEY_URL=https://hey-release.s3.us-east-2.amazonaws.com/hey_linux_amd64
 	wget $HEY_URL -O hey
 	chmod +x hey

runtime/experiments/payload/run.sh

@@ -16,7 +16,7 @@ source "framework.sh" || exit 1
 source "get_result_count.sh" || exit 1
 source "generate_gnuplots.sh" || exit 1
 
-if ! command -v hey; then
+if ! command -v hey > /dev/null; then
 	echo "hey is not present."
 	exit 1
 fi