## ls

#### OS/161 Reference Manual

### Name

ls - list files or directory contents

### Synopsis

/bin/ls [-adlRs] [path...]

### Description

ls lists the filesystem objects specified on the command line. If they are directories, the contents of the directories are listed (unless the -d option is used).

If the -a option is given, filenames beginning with dot (.) will be listed. Ordinarily, they are skipped.

If the -d option is given, directory contents will not be listed; the directories themselves will be.

If the -l option is given, a long format listing showing the file size, type, and link count will be displayed instead of just the filenames.

If the -R option is given, subdirectories encountered will be listed recursively.

If the -s option is given, the number of filesystem blocks used by each object will be displayed in addition to other information.

If no paths are specified, the current directory is assumed.

### Requirements

ls uses the following syscalls:

- open
- write
- fstat
- getdirentry
- close
- _exit

ls should function properly once the file system assignment is completed.