Remove unused -y flag

Author: filipopo

docs/10-prerequisites/30-docker/01-installation.md

@@ -13,7 +13,7 @@ Please follow the official guide for other operating systems than Ubuntu OS.
 
 Add docker's GPG key:
 ```bash
-sudo apt-get -y update
+sudo apt-get update
 sudo apt-get -y install ca-certificates curl
 sudo install -m 0755 -d /etc/apt/keyrings
 sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc
@@ -26,7 +26,7 @@ echo \
   "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu \
   $(. /etc/os-release && echo "$VERSION_CODENAME") stable" | \
   sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
-sudo apt-get -y update
+sudo apt-get update
 ```
 
 ## 2. Install the Docker engine

docs/10-prerequisites/30-docker/10-building-images.md

@@ -43,7 +43,7 @@ docker build -t my-app:latest .
 ```dockerfile
 FROM ctumrs/ros:noetic
 
-RUN apt-get -y update
+RUN apt-get update
 
 # workaround interactive prompts during apt installations
 RUN echo 'debconf debconf/frontend select Noninteractive' | sudo debconf-set-selections

versioned_docs/version-1.5.0/10-prerequisites/25-ros2/10-installation.md

@@ -14,7 +14,7 @@ sudo curl -sSL https://raw.githubusercontent.com/ros/rosdistro/master/ros.key -o
 
 echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/ros-archive-keyring.gpg] http://packages.ros.org/ros2/ubuntu $(. /etc/os-release && echo $UBUNTU_CODENAME) main" | sudo tee /etc/apt/sources.list.d/ros2.list > /dev/null
 
-sudo apt-get -y update
+sudo apt-get update
 
 sudo apt-get -y install ros-jazzy-desktop-full ros-dev-tools
 ```

versioned_docs/version-1.5.0/10-prerequisites/30-docker/01-installation.md

@@ -13,7 +13,7 @@ Please follow the official guide for other operating systems than Ubuntu OS.
 
 Add docker's GPG key:
 ```bash
-sudo apt-get -y update
+sudo apt-get update
 sudo apt-get -y install ca-certificates curl
 sudo install -m 0755 -d /etc/apt/keyrings
 sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc
@@ -26,7 +26,7 @@ echo \
   "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu \
   $(. /etc/os-release && echo "$VERSION_CODENAME") stable" | \
   sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
-sudo apt-get -y update
+sudo apt-get update
 ```
 
 ## 2. Install the Docker engine

versioned_docs/version-1.5.0/10-prerequisites/30-docker/10-building-images.md

@@ -43,7 +43,7 @@ docker build -t my-app:latest .
 ```dockerfile
 FROM ctumrs/ros:noetic
 
-RUN apt-get -y update
+RUN apt-get update
 
 # workaround interractive prompts during apt installations
 RUN echo 'debconf debconf/frontend select Noninteractive' | sudo debconf-set-selections