Temporary script for

tmp_script_for_nextjs.md

#!/bin/bash
# create tsconfig.json
echo "Create tsconfig.json"
touch tsconfig.json

# install packages for typescript
echo "install packages"
YARNCOMMAND='yarn add --dev typescript @types/react @types/node'
if $YARNCOMMAND ; then
    echo "installed package by yarn"
    yarn dev
else
    npm install --save-dev typescript @types/react @types/node
    echo "installed package by npm"
    npm run dev
fi

# change ext from .js file to .ts/.tsx
echo "rename files"
find pages -name "_app.js" -or -name "index.js" | sed 'p;s/.js$/.tsx/' | xargs -n2 mv & \\n  find pages/api -name "*.js" | sed 'p;s/.js$/.ts/' | xargs -n2 mv
echo "done ✌️"

tmp_script_for_nextjs.sh

#!/bin/bash
echo "Create tsconfig.json"
touch tsconfig.json

echo "install packages"
YARNCOMMAND='yarn add --dev typescript @types/react @types/node'
if $YARNCOMMAND ; then
    echo "installed package by yarn"
else
    npm install --save-dev typescript @types/react @types/node
    echo "installed package by npm"
fi

# WIP
echo "rename files"
find pages -name "_app.js" -or -name "index.js" | sed 'p;s/.js$/.tsx/' | xargs -n2 mv & \\n  find pages/api -name "*.js" | sed 'p;s/.js$/.ts/' | xargs -n2 mv
echo "done ✌️"