echo.n

118.97.114 115.97.121.72.101.108.108.111 61 34 72.101.108.108.111.32.87.111.114.108.100.33.44.32.73.32.116.104.105.110.107.32.116.104.101.32.115.121.110.116.97.120.32.105.115.32.108.105.107.101.32.97.110.32.105.112.32.97.100.100.114.101.115.115.46 34 
101.99.104.111 36.115.97.121.72.101.108.108.111

101.99.104.111 36.115.97.121.72.101.108.108.111 36.115.97.121.72.101.108.108.111 49.48.48

101.99.104.111 34 87.116.102 105.115 116.104.105.115 34

101.99.104.111 45.101 34 92.101.91.51.49.109 87.116.102 105.115 116.104.105.115 116.104.105.115 116.104.105.115 116.104.105.115 92.101.91.48.109 34

101.99.104.111 34 73 32 100 111 110 116 32 107 110 111 119 32 119 104 97 116 32 105 32 97 109 32 100 111 105 110 103 34

// var a = "n"
118.97.114 97 61 34 110 34
118.97.114 98 61 34 110 34

// var c = a + b
118.97.114 99 61 97 43 98

// echo $c
101.99.104.111 36.99

// if c == "nn" 
105.102 99 61.61 34 110.110 34 123 
  101.99.104.111 34 116.104.105.115.32.105.115.32.116.114.117.101 34 // output: this is true
125

// var num = 100
118.97.114 110.117.109 61 49.48.48

// echo $num
101.99.104.111 36.110.117.109

/**
 * Capture the output of a command
 */

// var aa = $(ls)
118.97.114 97.97 61 36.40.108.115.41

// echo "======="
101.99.104.111 34 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 34

// echo $aa
101.99.104.111 34 36.97.97 34