Linux utils

Linux utils

1. ======= useful command ==========

• fzf is a general-purpose command-line fuzzy finder

2. ======= git ==========

$ git clean -fd
git clean -f
git apply --whitespace=nowarn  ~/br_lge_extensions.patch
git reset --hard HEAD
git clone --recursive

3. ======= lighttpd ==========

• Enable ssl

  cd /etc/lighttpd/certs
  openssl req -new -x509 -keyout lighttpd.pem -out lighttpd.pem -days 365 -nodes
  chmod 400 lighttpd.pem

  ⇒ Change common name during generate lighttpd.pem key to matching domain name 192.168.123.196

• Then edit /etc/lighttpd/lighttpd.conf and add:

  $SERVER["socket"] == ":443" {
    ssl.engine = "enable" 
    ssl.pemfile = "/etc/lighttpd/certs/lighttpd.pem" 
  }

• Curl test:

  echo "" | openssl s_client -servername 192.168.123.196 -connect 192.168.123.196:443 2>/dev/null </dev/null |  sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' > client.key
  curl -v --cacert client.key https://192.168.123.196:443/deviceInfo 

4. ======= remote develop ==========

• Use ssh without password

  $ssh-keygen -t rsa
  $ssh-copy-id -i ~/.ssh/id_rsa.pub {user}@{host}

• Download a single file from a remote ftp server to your machine:

  $sftp {user}@{host}:{remoteFileName} {localFileName}

• Upload a single file from your machine to a remote ftp server:

  $sftp {user}@{host}:{remote_dir} <<< $'put {local_file_path}'