.TH CHDIR 2 .SH NAME chdir \- change default directory .SH SYNOPSIS .B chdir(dirname) .br .B char *dirname; .SH DESCRIPTION .I Dirname is the address of the pathname of a directory, terminated by a null byte. .I Chdir causes this directory to become the current working directory, the starting point for path names not beginning with `/'. .SH "SEE ALSO" cd(1) .SH DIAGNOSTICS Zero is returned if the directory is changed; \-1 is returned if the given name is not that of a directory or is not searchable. .SH ASSEMBLER (chdir = 12.) .br .B sys chdir; dirname