chdir, cd -- change the current working directory
chdir [newdir] or cd [newdir]
- The new working directory. The special name "." refers to the current directory; ".." refers to the next higher directory.
Chdir is used to change the current working directory. When called without any arguments, chdir sets the default directory to "home$", the users home directory. The new directory can be specified as an IRAF logical name, as a sub-directory of the current directory, as a path from either a logical directory or the current directory, or as an operating system dependent name.
The names chdir and cd are synonyms. Note that the command back may be called after a chdir to return to the previous directory without typing its name.
1. Return to our home directory.
2. Go to the package logical directory "pkg$".
cl> chdir pkg
3. Go down one level to the directory "dataio", a subdirectory of "pkg".
cl> cd dataio
4. From "dataio", go back up to "pkg" and down into "images".
cl> cd ../images
5. Go to the "tv" directory, a subdirectory of "images", regardless of the current directory
cl> cd pkg$images/tv
6. On a VMS system, define a new logical directory on a different disk device and go there. Note that the character $ is not permitted in host file or directory names.
cl> set dd = scr1:[data] cl> cd dd