![]() ![]() Instead, the shell itself executes this command. This means that when the command is executed, no new process is created to migrate to the other directory as is the case with other commands such as ls. The system call that effects the command in most operating systems is chdir that is defined by POSIX.Ĭommand line shells on Windows usually use the Windows API to change the current working directory, whereas on Unix systems cd calls the chdir() POSIX C function. This is the case in most of the Unix shells ( Bourne shell, tcsh, bash, etc.), cmd.exe on Microsoft Windows NT/ 2000+ and Windows PowerShell on Windows 7+ and COMMAND.COM on DOS/ Microsoft Windows 3.x- 9x/ ME. Ĭd is frequently included built directly into a command-line interpreter. The command is analogous to the Stratus OpenVOS change_current_dir command. The command is also available in the open source MS-DOS emulator DOSBox and in the EFI shell. DR DOS 6.0 also includes an implementation of the cd and chdir commands. On MS-DOS, it is available in versions 2 and later. The command has been implemented in operating systems such as Unix, DOS, IBM OS/2, MetaComCo TRIPOS, AmigaOS (where if a bare path is given, cd is implied), Microsoft Windows, ReactOS, and Linux. ![]() It can be used in shell scripts and batch files. The cd command, also known as chdir ( change directory), is a command-line shell command used to change the current working directory in various operating systems. Unix, Unix-like, V, DOS, MSX-DOS, FlexOS, OS/2, TRIPOS, Windows, MPE/iX, Plan 9, Inferno, ReactOS, KolibriOS, SymbOS The cd command in an rc session running on Plan 9 from Bell LabsĪT&T Bell Laboratories, MetaComCo, Microsoft, IBM, DR, Novell, HP, JP Software, ReactOS Contributors ![]()
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