| Index Entry | Section |
|
| O | | |
| obs | 11.2 dd: Convert and copy a file |
| ocrnl | 19.2.3 Output settings |
| octal dump of files | 3.4 od: Write files in octal or other formats |
| octal numbers for file modes | 26.3 Numeric Modes |
| od | 3.4 od: Write files in octal or other formats |
| odd parity | 19.2.1 Control settings |
| oddp | 19.2.5 Combination settings |
| of | 11.2 dd: Convert and copy a file |
| ofdel | 19.2.3 Output settings |
| ofill | 19.2.3 Output settings |
| oflag | 11.2 dd: Convert and copy a file |
| olcuc | 19.2.3 Output settings |
| older-than file check | 16.3.3 File characteristic tests |
| once interactive option | 11.5 rm: Remove files or directories |
| one file system, restricting du to | 14.2 du: Estimate file space usage |
| one file system, restricting rm to | 11.5 rm: Remove files or directories |
| one-line output format | 14.1 df: Report file system disk space usage |
| onlcr | 19.2.3 Output settings |
| onlret | 19.2.3 Output settings |
| onocr | 19.2.3 Output settings |
| operating on characters | 9. Operating on characters |
| operating on sorted files | 7. Operating on sorted files |
| operating system name | 21.3 uname: Print system information |
| opost | 19.2.3 Output settings |
| option delimiter | 2. Common options |
| options for date | 21.1.6 Options for date |
| or operator | 16.3.6 Connectives for test |
| or operator | 16.4.3 Relations for expr |
| ordinal numbers | 27.1 General date syntax |
| ospeed | 19.2.7 Special settings |
| other permissions | 26.2.1 Setting Permissions |
| output block size | 11.2 dd: Convert and copy a file |
| output file name prefix | 5.3 split: Split a file into fixed-size pieces |
| output file name prefix | 5.4 csplit: Split a file into context-determined pieces |
| output file name suffix | 5.4 csplit: Split a file into context-determined pieces |
| output format | 14.3 stat: Report file or file system status |
| output format | 14.3 stat: Report file or file system status |
| output format, portable | 14.1 df: Report file system disk space usage |
| output null-byte-terminated lines | 14.2 du: Estimate file space usage |
| output of entire files | 3. Output of entire files |
| output of parts of files | 5. Output of parts of files |
| output settings | 19.2.3 Output settings |
| output tabs | 4.2 pr: Paginate or columnate files for printing |
| overwriting of input, allowed | 7.1 sort: Sort text files |
| overwriting of input, allowed | 7.2 shuf: Shuffling text |
| owned by effective group ID check | 16.3.2 Access permission tests |
| owned by effective user ID check | 16.3.2 Access permission tests |
| owner of file, permissions for | 26.2.1 Setting Permissions |
| owner, default | 26.1 Structure of File Mode Bits |
| ownership of installed files, setting | 11.3 install: Copy files and set attributes |
|
| P | | |
| p for FIFO file | 12.5 mknod: Make block or character special files |
| pad character | 19.2.3 Output settings |
| pad instead of timing for delaying | 19.2.3 Output settings |
| padding of numeric fields | 21.1.4 Padding and other flags |
| paragraphs, reformatting | 4.1 fmt: Reformat paragraph text |
| parenb | 19.2.1 Control settings |
| parent directories and cp | 11.1 cp: Copy files and directories |
| parent directories, creating | 12.3 mkdir: Make directories |
| parent directories, creating missing | 11.3 install: Copy files and set attributes |
| parent directories, removing | 12.7 rmdir: Remove empty directories |
| parentheses for grouping | 16.4 expr: Evaluate expressions |
| parity | 19.2.5 Combination settings |
| parity errors, marking | 19.2.2 Input settings |
| parity, ignoring | 19.2.2 Input settings |
| parmrk | 19.2.2 Input settings |
| parodd | 19.2.1 Control settings |
| parsing date strings | 21.1.6 Options for date |
| parts of files, output of | 5. Output of parts of files |
| pass8 | 19.2.5 Combination settings |
| passwd entry, and su shell | 22.5 su: Run a command with substitute user and group ID |
| paste | 8.2 paste: Merge lines of files |
| Paterson, R. | 1. Introduction |
| PATH | 22.2 env: Run a command in a modified environment |
| PATH | 22.5 su: Run a command with substitute user and group ID |
| pathchk | 18.3 pathchk: Check file name portability |
| pattern matching | 16.4.1 String expressions |
| PC file system | 14.1 df: Report file system disk space usage |
| pcfs | 14.1 df: Report file system disk space usage |
| pebibyte, definition of | 2.3 Block size |
| permission tests | 16.3.2 Access permission tests |
| permissions of installed files, setting | 11.3 install: Copy files and set attributes |
| permissions, changing access | 13.3 chmod: Change access permissions |
| permissions, copying existing | 26.2.2 Copying Existing Permissions |
| permissions, for changing file timestamps | 13.4 touch: Change file timestamps |
| permissions, output by ls | 10.1.2 What information is listed |
| petabyte, definition of | 2.3 Block size |
| phone directory order | 7.1 sort: Sort text files |
| pieces, splitting a file into | 5.3 split: Split a file into fixed-size pieces |
| Pinard, F. | 1. Introduction |
| Pinard, F. | 27.10 Authors of get_date |
| pipe fitting | 17.1 tee: Redirect output to multiple files or processes |
| Plass, Michael F. | 4.1 fmt: Reformat paragraph text |
| platform, hardware | 21.3 uname: Print system information |
| pm in date strings | 27.3 Time of day items |
| portable file names, checking for | 18.3 pathchk: Check file name portability |
| portable output format | 14.1 df: Report file system disk space usage |
| POSIX | 1. Introduction |
| POSIX output format | 14.1 df: Report file system disk space usage |
| POSIXLY_CORRECT | 2. Common options |
| POSIXLY_CORRECT | 2.11 Standards conformance |
| POSIXLY_CORRECT | 4.2 pr: Paginate or columnate files for printing |
| POSIXLY_CORRECT | 5.2 tail: Output the last part of files |
| POSIXLY_CORRECT | 7.1 sort: Sort text files |
| POSIXLY_CORRECT | 7.1 sort: Sort text files |
| POSIXLY_CORRECT | 11.2 dd: Convert and copy a file |
| POSIXLY_CORRECT | 15.1 echo: Print a line of text |
| POSIXLY_CORRECT | 15.2 printf: Format and print data |
| POSIXLY_CORRECT, and block size | 2.3 Block size |
| pr | 4.2 pr: Paginate or columnate files for printing |
| prime factors | 25.1 factor: Print prime factors |
| print | 9.1.1 Specifying sets of characters |
| print machine hardware name | 21.2 arch: Print machine hardware name |
| print name of current directory | 19.1 pwd: Print working directory |
| print system information | 21.3 uname: Print system information |
| print terminal file name | 19.4 tty: Print file name of terminal on standard input |
| printenv | 19.3 printenv: Print all or some environment variables |
| printf | 15.2 printf: Format and print data |
| printing all or some environment variables | 19.3 printenv: Print all or some environment variables |
| printing color database | 10.4 dircolors: Color setup for ls |
| printing current user information | 20.6 who: Print who is currently logged in |
| printing current usernames | 20.5 users: Print login names of users currently logged in |
| printing groups a user is in | 20.4 groups: Print group names a user is in |
| printing real and effective user and group IDs | 20.1 id: Print user identity |
| printing text | 15.1 echo: Print a line of text |
| printing text, commands for | 15. Printing text |
| printing the current time | 21.1 date: Print or set system date and time |
| printing the effective user ID | 20.3 whoami: Print effective user ID |
| printing the host identifier | 21.5 hostid: Print numeric host identifier. |
| printing the hostname | 21.4 hostname: Print or set system name |
| printing user's login name | 20.2 logname: Print current login name |
| printing, preparing files for | 4.2 pr: Paginate or columnate files for printing |
| processes, commands for controlling | 23. Process control |
| prompting, and ln | 12.2 ln: Make links between files |
| prompting, and mv | 11.4 mv: Move (rename) files |
| prompting, and rm | 11.5 rm: Remove files or directories |
| prompts, forcing | 11.4 mv: Move (rename) files |
| prompts, omitting | 11.4 mv: Move (rename) files |
| prterase | 19.2.4 Local settings |
| ptx | 7.7 ptx: Produce permuted indexes |
| punct | 9.1.1 Specifying sets of characters |
| pure numbers in date strings | 27.7 Pure numbers in date strings |
| pwd | 19.1 pwd: Print working directory |
|