exit status (exit) in unix / linux

  • Special variables in Unix / Linux

    Special variables in Unix / Linux

    the previous tutorial has warned about using special characters in your variable name. this is because these characters are used in the names of special variables in unix. these variables are kept for special functions.
  • Use array in Shell

    Use array in Shell

    a shell variable is able to hold a single value. this type of variables is called scalar variables.