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| <<Include(/c, "-c", 4, from="^----$")>> | <<Include(/c, "-c CommandString", 4, from="^----$")>> <<Include(/i, "-i", 4, from="^----$")>> <<Include(/l, "-l", 4, from="^----$")>> <<Include(/r, "-r", 4, from="^----$")>> <<Include(/s, "-s", 4, from="^----$")>> <<Include(/dd, "-D", 4, from="^----$")>> <<Include(/oo, "-O ShoptOption | +O ShoptOption", 4, from="^----$")>> <<Include(/_, "-", 4, from="^----$")>> <<Include(/__, "-- | -", 4, from="^----$")>> <<Include(/debugger, "--debugger", 4, from="^----$")>> <<Include(/dump_po_strings, "--dump-po-strings", 4, from="^----$")>> <<Include(/dump_strings, "--dump-strings", 4, from="^----$")>> <<Include(/help, "--help", 4, from="^----$")>> <<Include(/init_file, "--init-file", 4, from="^----$")>> <<Include(/rcfile, "--rcfile", 4, from="^----$")>> <<Include(/login, "--login", 4, from="^----$")>> <<Include(/noediting, "--noediting", 4, from="^----$")>> <<Include(/noprofile, "--noprofile", 4, from="^----$")>> <<Include(/norc, "--norc", 4, from="^----$")>> <<Include(/posix, "--posix", 4, from="^----$")>> <<Include(/restricted, "--restricted", 4, from="^----$")>> <<Include(/verbose, "--verbose", 4, from="^----$")>> <<Include(/version, "--version", 4, from="^----$")>> |
Contents
1. Invocation Options
1.1. -c CommandString
-c [options] -- CommandString [ARG0 [ARG...]]
- commands are read from the first non-option argument (required)
$0 is set as the second non-option argument defaulting to "bash"
all remaining non-option arguments are assigned to the positional parameters starting at $1
[[ $- =~ c ]] will return true
1.2. -i
force the shell into Interactive Mode
[[ $- =~ i ]] will return true
[[ ${PS1+set} = 'set' ]] will return true
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1.3. -l
pragma section-numbers 1
Contents
1.4. Invocation Option l
act as a Login Shell
--login must appear on the command line before the single-character options to be recognized.
1.5. -r
act as a Restricted Shell
1.6. -s
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1.7. -D
Contents
1.8. Invocation Option D
- A list of all double-quoted strings preceded by $ is printed on the standard output. These are the strings that are subject to language translation when the current locale is not C or POSIX. This implies the -n option; no commands will be executed.
1.9. -O ShoptOption | +O ShoptOption
-O ShoptOption | +O ShoptOption
- shopt_option is one of the shell options accepted by the shopt builtin (see SHELL BUILTIN COMMANDS below).
- If shopt_option is present, -O sets the value of that option; +O unsets it.
- If shopt_option is not supplied, the names and values of the shell options accepted by shopt are printed on the standard output.
- If the invocation option is +O, the output is displayed in a format that may be reused as input.
1.10. --debugger
- Arrange for the debugger profile to be executed before the shell starts.
- Turns on extended debugging mode (see the description of the extdebug option to the shopt builtin below).
- These options must appear on the command line before the single-character options to be recognized.
1.11. --dump-po-strings
- Equivalent to -D, but the output is in the GNU gettext po (portable object) file format.
- These options must appear on the command line before the single-character options to be recognized.
1.12. --dump-strings
- A list of all double-quoted strings preceded by $ is printed on the standard output. These are the strings that are subject to language translation when the current locale is not C or POSIX. This implies the -n option; no commands will be executed.
1.13. --help
- Display a usage message on standard output and exit successfully.
- These options must appear on the command line before the single-character options to be recognized.
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1.14. --init-file
Contents
1.15. Invocation Option --rcfile
--rcfile FILE | --init-file FILE
- Execute commands from file instead of the standard personal initialization file ~/.bashrc if the shell is interactive (see INVOCATION below).
- An argument of --init-file is equivalent to --rcfile.
- These options must appear on the command line before the single-character options to be recognized.
1.16. --rcfile
--rcfile FILE | --init-file FILE
- Execute commands from file instead of the standard personal initialization file ~/.bashrc if the shell is interactive (see INVOCATION below).
- An argument of --init-file is equivalent to --rcfile.
- These options must appear on the command line before the single-character options to be recognized.
1.17. --login
act as a Login Shell
--login must appear on the command line before the single-character options to be recognized.
1.18. --noediting
- Do not use the GNU readline library to read command lines when the shell is interactive.
- These options must appear on the command line before the single-character options to be recognized.
1.19. --noprofile
- Do not read either the system-wide startup file /etc/profile or any of the personal initialization files ~/.bash_profile, ~/.bash_login, or ~/.profile.
- By default, bash reads these files when it is invoked as a login shell (see INVOCATION below).
- These options must appear on the command line before the single-character options to be recognized.
1.20. --norc
- Do not read and execute the personal initialization file ~/.bashrc if the shell is interactive.
- This option is on by default if the shell is invoked as sh.
- These options must appear on the command line before the single-character options to be recognized.
1.21. --posix
- Change the behavior of bash where the default operation differs from the POSIX standard to match the standard (posix mode).
- See SEE ALSO below for a reference to a document that details how posix mode affects bash's behavior.
- These options must appear on the command line before the single-character options to be recognized.
1.22. --restricted
act as a Restricted Shell