commands.sh

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stat file
ln -s
Control + A beginning of the line
Control + E end of the line
echo '{"a": {"b":123 } }' | jq '.a.b'
curl -s https://api.github.com/repos/facebook/react | jq '.stargazers_count'
curl -s https://api.github.com/search/repositories?q=service+worker | jq '.items[].name'
cat filename
grep pattern


for dep in $(jq -r '.dependencies | keys | .[]' package.json); do
  if ! grep "require\(.*$dep.*\)" -Rq --exclude-dir="node_modules" .; then
    echo "You can probably remove $dep"
  fi
done

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> // Redirect stdout
$ ls 1> ls.txt
ls noexist 2> ls-errs.txt
cat < ls.txt
ls > ls.txt 2>&1
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exec >> log/hooks-out.log 2>&1

if git diff-tree --name-only --no-commit-id ORIG_HEAD HEAD | grep --quiet 'package.json'; then
  echo "$(date): Running npm install because package.json changed"
  # redirecting stdout to dev/null trashes quiets the stdout, but it's stderr will go to our log file
  npm install > /dev/null
else
  echo "$(date): No changes in package.json found"
fi

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case "$1" in
  *.tar|*.tgz) tar -xzvf "$1";;
  *.gz) gunzip -k "$1";;
  *.zip) unzip -v "$1";;
  *)
    echo "Cannot extract $1"
    exit 1
  ;;
esac
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dir=${1:-$PWD}
Find "$dir" -type f -maxdepth 1 | wc -l
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touch script.sh
chmod +x !$
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#adding something to path
export PATH "$PATH:~/my-scripts"
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git rebase -i [commit]