minishell_ys_hm

Minishell 42.

Explanation of how functions works on bash

• echo
• echo with option -n
• cd with only a relative or absolute path
• pwd with no options
• export with no options
• unset with no options
• env with no options or arguments
• exit with no options

Make Options

• make
  • compile all files required and create executable, "minishell"
• make clean
  • removes unnecessary *.o files not necessary to run program
• make fclean
  • removes everything created by make, including "minishell"
• make re
  • removes everything and compile again.

general knowledge

• PATH_MAX
  • in Mac in 42 Tokyo (Mac OS Mojave), the maximum length of a file or directory is 255, and the total pathline should be less than 1024.(PATH_MAX)
• status number
  • command not found: 127 "command not found: %s"
  • parse error: 258 "syntax error near unexpected token `%c'"
  • fork error: 149 "fork failed: resource temporarily unavailable"
  • fd error: 1 "Too many open files" (error in open, dup, pipe)
  • failed to execute command: 1