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
Val de Cans International Airport returned to the Ministry of Aeronautics in 1945. Panair do Brasil, Pan American, and NAB – Navegação Aérea Brasileira began their activities at Val de Cans building their stations and providing services to passengers. In 1958, the Ministry of Aeronautics began building the first passenger terminal for general airline use, which was opened on 24 January 1959. It was then administered by the Department of Civil Aviation. In 1974 its administration was transferred to Infraero. The original passenger terminal complex underwent major renovation and expansion, which was completed in 2001: in 1999 a brand-new passenger terminal located at the side