True and false (commands) Bash: True and false (commands) In Unix-like operating systems, codice_1 and codice_2 are commands whose only function is to always return with a predetermined exit status. Programmers and scripts often use the exit status of a command to assess success (exit status zero) or failure (non-zero) of the command. The codice_1 and codice_2 commands represent the logical values of command success, because "true" returns 0, and "false" returns 1. The commands are usually employed in conditional statements and loops of shell scripts. For example, the following shell script repeats the "echo hello" loop until interrupted: while true do done The
Hobo stove constructed out of a variety of materials: paint cans, coffee cans, food tins, buckets, and large drums are most often put to that purpose. Further flexibility lies in the fact that nearly anything combustible can be used as a fuel source. Typical fuels are dry twigs and small pine cones. Use of animal dung is also possible. Use of a Buddy Burner allows a switch to use of such less-volatile liquid fuels as rubbing alcohol or kerosene or wax. Some types of cans may have interior coatings containing chemicals such as Bisphenol A. Reusing containers originally holding paints and other