chdir(3) [linux man page]
CHDIR(P) POSIX Programmer's Manual CHDIR(P) NAME
chdir - change working directory SYNOPSIS
#include <unistd.h> int chdir(const char *path); DESCRIPTION
The chdir() function shall cause the directory named by the pathname pointed to by the path argument to become the current working direc- tory; that is, the starting point for path searches for pathnames not beginning with '/' . RETURN VALUE
Upon successful completion, 0 shall be returned. Otherwise, -1 shall be returned, the current working directory shall remain unchanged, and errno shall be set to indicate the error. ERRORS
The chdir() function shall fail if: EACCES Search permission is denied for any component of the pathname. ELOOP A loop exists in symbolic links encountered during resolution of the path argument. ENAMETOOLONG The length of the path argument exceeds {PATH_MAX} or a pathname component is longer than {NAME_MAX}. ENOENT A component of path does not name an existing directory or path is an empty string. ENOTDIR A component of the pathname is not a directory. The chdir() function may fail if: ELOOP More than {SYMLOOP_MAX} symbolic links were encountered during resolution of the path argument. ENAMETOOLONG As a result of encountering a symbolic link in resolution of the path argument, the length of the substituted pathname string exceeded {PATH_MAX}. The following sections are informative. EXAMPLES
Changing the Current Working Directory The following example makes the value pointed to by directory, /tmp, the current working directory. #include <unistd.h> ... char *directory = "/tmp"; int ret; ret = chdir (directory); APPLICATION USAGE
None. RATIONALE
The chdir() function only affects the working directory of the current process. FUTURE DIRECTIONS
None. SEE ALSO
getcwd() , the Base Definitions volume of IEEE Std 1003.1-2001, <unistd.h> COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technol- ogy -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. In the event of any discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can be obtained online at http://www.opengroup.org/unix/online.html . IEEE
/The Open Group 2003 CHDIR(P)
Check Out this Related Man Page
CHDIR(3P) POSIX Programmer's Manual CHDIR(3P) PROLOG
This manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface may differ (consult the correspond- ing Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux. NAME
chdir -- change working directory SYNOPSIS
#include <unistd.h> int chdir(const char *path); DESCRIPTION
The chdir() function shall cause the directory named by the pathname pointed to by the path argument to become the current working direc- tory; that is, the starting point for path searches for pathnames not beginning with '/'. RETURN VALUE
Upon successful completion, 0 shall be returned. Otherwise, -1 shall be returned, the current working directory shall remain unchanged, and errno shall be set to indicate the error. ERRORS
The chdir() function shall fail if: EACCES Search permission is denied for any component of the pathname. ELOOP A loop exists in symbolic links encountered during resolution of the path argument. ENAMETOOLONG The length of a component of a pathname is longer than {NAME_MAX}. ENOENT A component of path does not name an existing directory or path is an empty string. ENOTDIR A component of the pathname names an existing file that is neither a directory nor a symbolic link to a directory. The chdir() function may fail if: ELOOP More than {SYMLOOP_MAX} symbolic links were encountered during resolution of the path argument. ENAMETOOLONG The length of a pathname exceeds {PATH_MAX}, or pathname resolution of a symbolic link produced an intermediate result with a length that exceeds {PATH_MAX}. The following sections are informative. EXAMPLES
Changing the Current Working Directory The following example makes the value pointed to by directory, /tmp, the current working directory. #include <unistd.h> ... char *directory = "/tmp"; int ret; ret = chdir (directory); APPLICATION USAGE
None. RATIONALE
The chdir() function only affects the working directory of the current process. FUTURE DIRECTIONS
None. SEE ALSO
getcwd() The Base Definitions volume of POSIX.1-2008, <unistd.h> COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2013 Edition, Standard for Information Technol- ogy -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 7, Copyright (C) 2013 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) In the event of any discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Stan- dard is the referee document. The original Standard can be obtained online at http://www.unix.org/online.html . Any typographical or formatting errors that appear in this page are most likely to have been introduced during the conversion of the source files to man page format. To report such errors, see https://www.kernel.org/doc/man-pages/reporting_bugs.html . IEEE
/The Open Group 2013 CHDIR(3P)