| Index Entry | Section |
|---|
|
| Q | | |
|---|
| quit | 19.2.6 Special characters |
| quoting style | 10.1.7 Formatting the file names |
|
| R | | |
|---|
| radix for file offsets | 3.4 od: Write files in octal or other formats |
| random sort | 7.1 sort: Sort text files |
| random source for shredding | 11.6 shred: Remove files more securely |
| random source for shuffling | 7.2 shuf: Shuffling text |
| random source for sorting | 7.1 sort: Sort text files |
| random sources | 2.6 Sources of random data |
| ranges | 9.1.1 Specifying sets of characters |
| raw | 19.2.5 Combination settings |
| read errors, ignoring | 11.2 dd: Convert and copy a file |
| read from stdin and write to stdout and files | 17.1 tee: Redirect output to multiple files or processes |
| read permission | 27.1 Structure of File Mode Bits |
| read permission, symbolic | 27.2.1 Setting Permissions |
| read system call, and holes | 11.1 cp: Copy files and directories |
| readable file check | 16.3.2 Access permission tests |
| readlink | 12.6 readlink: Print value of a symlink or canonical file name |
| real user and group IDs, printing | 20.1 id: Print user identity |
| realpath | 12.6 readlink: Print value of a symlink or canonical file name |
| recursive directory listing | 10.1.1 Which files are listed |
| recursively changing access permissions | 13.3 chmod: Change access permissions |
| recursively changing file ownership | 13.1 chown: Change file owner and group |
| recursively changing group ownership | 13.2 chgrp: Change group ownership |
| recursively copying directories | 11.1 cp: Copy files and directories |
| recursively copying directories | 11.1 cp: Copy files and directories |
| redirection | 17. Redirection |
| reference file | 22.1 chcon: Change SELinux context of file |
| reformatting paragraph text | 4.1 fmt: Reformat paragraph text |
| regular expression matching | 16.4.1 String expressions |
| regular file check | 16.3.1 File type tests |
| relations, numeric or string | 16.4.3 Relations for expr |
| relative items in date strings | 28.6 Relative items in date strings |
| release of kernel | 21.4 uname: Print system information |
| remainder | 16.4.2 Numeric expressions |
| remote hostname | 20.6 who: Print who is currently logged in |
| removing empty directories | 12.7 rmdir: Remove empty directories |
| removing files after shredding | 11.6 shred: Remove files more securely |
| removing files or directories | 11.5 rm: Remove files or directories |
| removing files or directories (via the unlink syscall) | 12.8 unlink: Remove files via the unlink syscall |
| removing permissions | 27.2.1 Setting Permissions |
| repeated characters | 9.1.1 Specifying sets of characters |
| repeated lines, outputting | 7.3 uniq: Uniquify files |
| repeated output of a string | 15.3 yes: Print a string until interrupted |
| restricted deletion flag | 27.1 Structure of File Mode Bits |
| restricted shell | 23.6 su: Run a command with substitute user and group ID |
| return, ignoring | 19.2.2 Input settings |
| return, translating to newline | 19.2.2 Input settings |
| return, translating to newline | 19.2.3 Output settings |
| reverse sorting | 7.1 sort: Sort text files |
| reverse sorting | 10.1.3 Sorting the output |
| reversing files | 3.2 tac: Concatenate and write files in reverse |
| rm | 11.5 rm: Remove files or directories |
| rmdir | 12.7 rmdir: Remove empty directories |
| rn format for nl | 3.3 nl: Number lines and write files |
| root as default owner | 11.3 install: Copy files and set attributes |
| root directory, allow recursive destruction | 11.5 rm: Remove files or directories |
| root directory, allow recursive modification | 13.1 chown: Change file owner and group |
| root directory, allow recursive modification | 13.2 chgrp: Change group ownership |
| root directory, allow recursive modification | 13.3 chmod: Change access permissions |
| root directory, disallow recursive destruction | 11.5 rm: Remove files or directories |
| root directory, disallow recursive modification | 13.1 chown: Change file owner and group |
| root directory, disallow recursive modification | 13.2 chgrp: Change group ownership |
| root directory, disallow recursive modification | 13.3 chmod: Change access permissions |
| root directory, running a program in a specified | 23.1 chroot: Run a command with a different root directory |
| root, becoming | 23.6 su: Run a command with substitute user and group ID |
| rows | 19.2.7 Special settings |
| rprnt | 19.2.6 Special characters |
| RTS/CTS flow control | 19.2.1 Control settings |
| run commands with bounded time | 23.7 timeout: Run a command with a time limit |
| run with security context | 22.2 runcon: Run a command in specified SELinux context |
| runcon | 22.2 runcon: Run a command in specified SELinux context |
| running a program in a modified environment | 23.2 env: Run a command in a modified environment |
| running a program in a specified root directory | 23.1 chroot: Run a command with a different root directory |
| rz format for nl | 3.3 nl: Number lines and write files |
|
| S | | |
|---|
| Salz, Rich | 28.10 Authors of get_date |
| same file check | 16.3.3 File characteristic tests |
| sane | 19.2.5 Combination settings |
| scheduling, affecting | 23.3 nice: Run a command with modified niceness |
| screen columns | 4.3 fold: Wrap input lines to fit in specified width |
| seconds since the epoch | 21.1.1 Time conversion specifiers |
| section delimiters of pages | 3.3 nl: Number lines and write files |
| security context | 10.1.2 What information is listed |
| security context | 11.3 install: Copy files and set attributes |
| security context | 11.3 install: Copy files and set attributes |
| security context | 12.3 mkdir: Make directories |
| security context | 12.4 mkfifo: Make FIFOs (named pipes) |
| security context | 12.5 mknod: Make block or character special files |
| security context | 20.1 id: Print user identity |
| seek | 11.2 dd: Convert and copy a file |
| self-backups | 11.1 cp: Copy files and directories |
| SELinux | 10.1.2 What information is listed |
| SELinux | 11.3 install: Copy files and set attributes |
| SELinux | 11.3 install: Copy files and set attributes |
| SELinux | 12.3 mkdir: Make directories |
| SELinux | 12.4 mkfifo: Make FIFOs (named pipes) |
| SELinux | 12.5 mknod: Make block or character special files |
| SELinux | 20.1 id: Print user identity |
| SELinux context | 22. SELinux context |
| SELinux, context | 22. SELinux context |
| send a signal to processes | 24.1 kill: Send a signal to processes |
| sentences and line-breaking | 4.1 fmt: Reformat paragraph text |
| separator for numbers in seq | 26.2 seq: Print numeric sequences |
| seq | 26.2 seq: Print numeric sequences |
| sequence of numbers | 26.2 seq: Print numeric sequences |
| set-group-ID | 27.1 Structure of File Mode Bits |
| set-group-ID check | 16.3.2 Access permission tests |
| set-user-ID | 27.1 Structure of File Mode Bits |
| set-user-ID check | 16.3.2 Access permission tests |
| setgid | 27.1 Structure of File Mode Bits |
| setting permissions | 27.2.1 Setting Permissions |
| setting the hostname | 21.5 hostname: Print or set system name |
| setting the time | 21.1.5 Setting the time |
| setuid | 27.1 Structure of File Mode Bits |
| setup for color | 10.4 dircolors: Color setup for ls |
| sh syntax for color setup | 10.4 dircolors: Color setup for ls |
| SHA-1 | 6.5 sha1sum: Print or check SHA-1 digests |
| SHA-2 | 6.6 sha2 utilities: Print or check SHA-2 digests |
| sha1sum | 6.5 sha1sum: Print or check SHA-1 digests |
| sha224sum | 6.6 sha2 utilities: Print or check SHA-2 digests |
| sha256sum | 6.6 sha2 utilities: Print or check SHA-2 digests |
| sha384sum | 6.6 sha2 utilities: Print or check SHA-2 digests |
| sha512sum | 6.6 sha2 utilities: Print or check SHA-2 digests |
| SHELL | 23.6 su: Run a command with substitute user and group ID |
| SHELL environment variable, and color | 10.4 dircolors: Color setup for ls |
| shell utilities | GNU Coreutils |
| shred | 11.6 shred: Remove files more securely |
| shuf | 7.2 shuf: Shuffling text |
| shuffling files | 7.2 shuf: Shuffling text |
| SI output | 2.3 Block size |
| SI output | 10.1.2 What information is listed |
| SI output | 14.1 df: Report file system disk space usage |
| SI output | 14.2 du: Estimate file space usage |
| signals, specifying | 2.4 Signal specifications |
| simple backup method | 2.2 Backup options |
| SIMPLE_BACKUP_SUFFIX | 2.2 Backup options |
| single-column output of files | 10.1.5 General output formatting |
| size | 19.2.7 Special settings |
| size for main memory sorting | 7.1 sort: Sort text files |
| size of file to shred | 11.6 shred: Remove files more securely |
| size of files, reporting | 10.1.2 What information is listed |
| size of files, sorting files by | 10.1.3 Sorting the output |
| skip | 11.2 dd: Convert and copy a file |
| sleep | 25.1 sleep: Delay for a specified time |
| socket check | 16.3.1 File type tests |
| software flow control | 19.2.2 Input settings |
| sort | 7.1 sort: Sort text files |
| sort field | 7.1 sort: Sort text files |
| sort stability | 7.1 sort: Sort text files |
| sort stability | 7.1 sort: Sort text files |
| sort's last-resort comparison | 7.1 sort: Sort text files |
| sort's last-resort comparison | 7.1 sort: Sort text files |
| sorted files, operations on | 7. Operating on sorted files |
| sorting files | 7.1 sort: Sort text files |
| sorting ls output | 10.1.3 Sorting the output |
| space | 9.1.1 Specifying sets of characters |
| sparse files, copying | 11.1 cp: Copy files and directories |
| sparse files, creating | 14.5 truncate: Shrink or extend the size of a file |
| special characters | 19.2.6 Special characters |
| special file types | 12. Special file types |
| special file types | 12. Special file types |
| special files | 12.5 mknod: Make block or character special files |
| special settings | 19.2.7 Special settings |
| specifying sets of characters | 9.1.1 Specifying sets of characters |
| speed | 19.2.7 Special settings |
| split | 5.3 split: Split a file into fixed-size pieces |
| splitting a file into pieces | 5.3 split: Split a file into fixed-size pieces |
| splitting a file into pieces by context | 5.4 csplit: Split a file into context-determined pieces |
| squeezing empty lines | 3.1 cat: Concatenate and write files |
| squeezing repeat characters | 9.1.3 Squeezing repeats and deleting |
| Stallman, R. | 1. Introduction |
| standard input | 2. Common options |
| standard output | 2. Common options |
| standard streams, buffering | 23.5 stdbuf: Run a command with modified I/O stream buffering |
| start | 19.2.6 Special characters |
| stat | 14.3 stat: Report file or file system status |
| status | 11.2 dd: Convert and copy a file |
| status time, printing or sorting by | 10.1.3 Sorting the output |
| status time, show the most recent | 14.2 du: Estimate file space usage |
| stdbuf | 23.5 stdbuf: Run a command with modified I/O stream buffering |
| sticky | 27.1 Structure of File Mode Bits |
| sticky bit check | 16.3.2 Access permission tests |
| stop | 19.2.6 Special characters |
| stop bits | 19.2.1 Control settings |
| strftime and date | 21.1 date: Print or set system date and time |
| string constants, outputting | 3.4 od: Write files in octal or other formats |
| string expressions | 16.4.1 String expressions |
| string tests | 16.3.4 String tests |
| strip directory and suffix from file names | 18.1 basename: Strip directory and suffix from a file name |
| stripping non-directory suffix | 18.2 dirname: Strip non-directory suffix from a file name |
| stripping symbol table information | 11.3 install: Copy files and set attributes |
| stripping trailing slashes | 11.1 cp: Copy files and directories |
| stripping trailing slashes | 11.4 mv: Move (rename) files |
| stty | 19.2 stty: Print or change terminal characteristics |
| su | 23.6 su: Run a command with substitute user and group ID |
| substitute user and group IDs | 23.6 su: Run a command with substitute user and group ID |
| substr | 16.4.1 String expressions |
| subtracting permissions | 27.2.1 Setting Permissions |
| subtraction | 16.4.2 Numeric expressions |
| successful exit | 16.2 true: Do nothing, successfully |
| suffix, stripping from file names | 18.1 basename: Strip directory and suffix from a file name |
| sum | 6.2 sum: Print checksum and block counts |
| summarizing files | 6. Summarizing files |
| super-user, becoming | 23.6 su: Run a command with substitute user and group ID |
| superblock, writing | 14.4 sync: Synchronize data on disk with memory |
| supplementary groups, printing | 20.4 groups: Print group names a user is in |
| susp | 19.2.6 Special characters |
| swab (byte-swapping) | 11.2 dd: Convert and copy a file |
| swap space, saving text image in | 27.1 Structure of File Mode Bits |
| swtch | 19.2.6 Special characters |
| symbol table information, stripping | 11.3 install: Copy files and set attributes |
| symbol table information, stripping, program | 11.3 install: Copy files and set attributes |
| symbolic (soft) links, creating | 12.2 ln: Make links between files |
| symbolic link check | 16.3.1 File type tests |
| symbolic link to directory, controlling traversal of | 2.9 Traversing symlinks |
| symbolic link to directory, never traverse | 2.9 Traversing symlinks |
| symbolic link to directory, never traverse | 13.1 chown: Change file owner and group |
| symbolic link to directory, never traverse | 13.2 chgrp: Change group ownership |
| symbolic link to directory, never traverse | 22.1 chcon: Change SELinux context of file |
| symbolic link to directory, traverse each that is encountered | 2.9 Traversing symlinks |
| symbolic link to directory, traverse each that is encountered | 13.1 chown: Change file owner and group |
| symbolic link to directory, traverse each that is encountered | 13.2 chgrp: Change group ownership |
| symbolic link to directory, traverse each that is encountered | 22.1 chcon: Change SELinux context of file |
| symbolic link to directory, traverse each that is specified on the command line | 2.9 Traversing symlinks |
| symbolic link to directory, traverse each that is specified on the command line | 13.1 chown: Change file owner and group |
| symbolic link to directory, traverse each that is specified on the command line | 13.2 chgrp: Change group ownership |
| symbolic link to directory, traverse each that is specified on the command line | 22.1 chcon: Change SELinux context of file |
| symbolic link, defined | 12.2 ln: Make links between files |
| symbolic links and ln | 12.2 ln: Make links between files |
| symbolic links and pwd | 19.1 pwd: Print working directory |
| symbolic links, changing group | 13.2 chgrp: Change group ownership |
| symbolic links, changing owner | 13.1 chown: Change file owner and group |
| symbolic links, changing owner | 13.1 chown: Change file owner and group |
| symbolic links, changing owner | 13.1 chown: Change file owner and group |
| symbolic links, changing owner | 13.2 chgrp: Change group ownership |
| symbolic links, changing time | 13.4 touch: Change file timestamps |
| symbolic links, copying | 11.1 cp: Copy files and directories |
| symbolic links, copying | 11.1 cp: Copy files and directories |
| symbolic links, copying with | 11.1 cp: Copy files and directories |
| symbolic links, dereferencing | 10.1.1 Which files are listed |
| symbolic links, dereferencing | 10.1.1 Which files are listed |
| symbolic links, dereferencing | 10.1.1 Which files are listed |
| symbolic links, dereferencing in du | 14.2 du: Estimate file space usage |
| symbolic links, dereferencing in du | 14.2 du: Estimate file space usage |
| symbolic links, dereferencing in stat | 14.3 stat: Report file or file system status |
| symbolic links, following | 11.2 dd: Convert and copy a file |
| symbolic links, permissions of | 13.3 chmod: Change access permissions |
| symbolic modes | 27.2 Symbolic Modes |
| sync | 11.2 dd: Convert and copy a file |
| sync (padding with ASCII NULs) | 11.2 dd: Convert and copy a file |
| synchronize disk and memory | 14.4 sync: Synchronize data on disk with memory |
| synchronized data and metadata I/O | 11.2 dd: Convert and copy a file |
| synchronized data and metadata writes, before finishing | 11.2 dd: Convert and copy a file |
| synchronized data reads | 11.2 dd: Convert and copy a file |
| synchronized data writes, before finishing | 11.2 dd: Convert and copy a file |
| syslog | 23.6 su: Run a command with substitute user and group ID |
| system context | 21. System context |
| system information, printing | 21.2 arch: Print machine hardware name |
| system information, printing | 21.3 nproc: Print the number of available processors |
| system information, printing | 21.4 uname: Print system information |
| system name, printing | 21.5 hostname: Print or set system name |
| System V sum | 6.2 sum: Print checksum and block counts |
|