Install Go Lang on Raspberry Pi

install_go_pi.sh

cd $HOME
FileName='go1.13.4.linux-armv6l.tar.gz'
wget https://dl.google.com/go/$FileName
sudo tar -C /usr/local -xvf $FileName
cat >> ~/.bashrc << 'EOF'
export GOPATH=$HOME/go
export PATH=/usr/local/go/bin:$PATH:$GOPATH/bin
EOF
source ~/.bashrc

thanks!
You can update your script with latest go armv6l release
go1.12.5.linux-armv6l.tar.gz

thanks from my side too!
You can update your script with latest go armv6l release:
go1.12.6.linux-armv6l.tar.gz

Newest version is go1.13.4.linux-armv6l.tar.gz:

cd $HOME
FileName='go1.13.4.linux-armv6l.tar.gz'
wget https://dl.google.com/go/$FileName
sudo tar -C /usr/local -xvf $FileName
cat >> ~/.bashrc << 'EOF'
export GOPATH=$HOME/go
export PATH=/usr/local/go/bin:$PATH:$GOPATH/bin
EOF
source ~/.bashrc

Thanks! Updated the original post

Thanks @pcgeek86

1.15.7 up

cd $HOME
FileName='go1.15.7.linux-armv6l.tar.gz'
wget https://dl.google.com/go/$FileName
sudo tar -C /usr/local -xvf $FileName
cat >> ~/.bashrc << 'EOF'
export GOPATH=$HOME/go
export PATH=/usr/local/go/bin:$PATH:$GOPATH/bin
EOF
source ~/.bashrc

New download location for v1.17.2

cd $HOME
file='go1.17.2.linux-armv6l.tar.gz'
wget "https://golang.org/dl/$file"
sudo tar -C /usr/local -xvf "$file"
cat >> ~/.bashrc << 'EOF'
export GOPATH=$HOME/go
export PATH=/usr/local/go/bin:$PATH:$GOPATH/bin
EOF
source ~/.bashrc

Modifications:

• delete /usr/local/go if it exists
• does NOT add the GOPATH if it's already there
• optionally delete the downloaded archive (ctr+c to skip)
• chained with && so that the script exits early on failure

forked gist (v1.20.5):

go 1.17.7

cd /tmp
fileName='go1.17.7.linux-armv6l.tar.gz'
wget -c https://golang.org/dl/$fileName && sudo rm -rfv /usr/local/go && sudo tar -C /usr/local -xvf $fileName

grep -q 'GOPATH=' ~/.bashrc || cat >> ~/.bashrc << 'EOF'
export GOPATH=$HOME/go
export PATH=/usr/local/go/bin:$PATH:$GOPATH/bin
EOF

source ~/.bashrc

read -p "Press any key to delete downloaded file: $fileName..."
rm -rf "$fileName"

go 1.20.5

cd /tmp
fileName='go1.20.5.linux-armv6l.tar.gz'
wget -c https://go.dev/dl/$fileName && sudo rm -rfv /usr/local/go && sudo tar -C /usr/local -xvf $fileName

grep -q 'GOPATH=' ~/.bashrc || cat >> ~/.bashrc << 'EOF'
export GOPATH=$HOME/go
export PATH=/usr/local/go/bin:$PATH:$GOPATH/bin
EOF

source ~/.bashrc

read -p "Press any key to delete downloaded file: $fileName..."
rm -rf "$fileName"

Version 1.18 for Raspberry Pi 4

cd /tmp
fileName='go1.18.linux-arm64.tar.gz'
wget -c https://golang.org/dl/$fileName && sudo rm -rfv /usr/local/go && sudo tar -C /usr/local -xvf $fileName

grep -q 'GOPATH=' ~/.bashrc || cat >> ~/.bashrc << 'EOF'
export GOPATH=$HOME/go
export PATH=/usr/local/go/bin:$PATH:$GOPATH/bin
EOF

source ~/.bashrc

read -p "Press any key to delete downloaded file: $fileName..."
rm -rf "$fileName"

Universal script for the LATEST golang version

Uses the latest golang version endpoint

read -p "Press any key to delete the previous golang installation (if present)..."
rm -rf "/usr/local/go"
mkdir -p $HOME/go

cd /tmp
# see https://stackoverflow.com/a/46624091/191246
version=$(curl -s 'https://go.dev/VERSION?m=text' | head -n 1)
fileName="${version}.linux-armv6l.tar.gz"
wget -c https://go.dev/dl/$fileName && sudo rm -rfv /usr/local/go && sudo tar -C /usr/local -xvf $fileName

# add bash env vars if not already there
grep -q 'GOPATH=' ~/.bashrc || cat >> ~/.bashrc << 'EOF'
export GOPATH=$HOME/go
export PATH=/usr/local/go/bin:$PATH:$GOPATH/bin
EOF

source ~/.bashrc

read -p "Press any key to delete downloaded file: $fileName..."
rm -rf "$fileName"