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idのヘルプ・マニュアル

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id --help

Usage: id [OPTION]... [USERNAME] Print user and group information for the specified USERNAME, or (when USERNAME omitted) for the current user. -a ignore, for compatibility with other versions -Z, --context print only the security context of the current user -g, --group print only the effective group ID -G, --groups print all group IDs -n, --name print a name instead of a number, for -ugG -r, --real print the real ID instead of the effective ID, with -ugG -u, --user print only the effective user ID --help この使い方を表示して終了 --version バージョン情報を表示して終了 オプションが無い場合はユーザ情報のうち有用なものを表示. Report id bugs to bug-coreutils@gnu.org GNU coreutils home page: General help using GNU software: Report id translation bugs to For complete documentation, run: info coreutils 'id invocation'

Usage: id [OPTION]... [USERNAME] Print user and group information for the specified USERNAME, or (when USERNAME omitted) for the current user. -a ignore, for compatibility with other versions -Z, --context print only the security context of the current user -g, --group print only the effective group ID -G, --groups print all group IDs -n, --name print a name instead of a number, for -ugG -r, --real print the real ID instead of the effective ID, with -ugG -u, --user print only the effective user ID --help display this help and exit --version output version information and exit Without any OPTION, print some useful set of identified information. Report id bugs to bug-coreutils@gnu.org GNU coreutils home page: General help using GNU software: For complete documentation, run: info coreutils 'id invocation'

man id

ID(1) ID(1) 名前 id - 現在のユーザ ID 名とグループ ID 名を表示する 書式 id [-a] 説明 id は、現在の実ユーザ ID、実効ユーザ ID、実グループ ID、実効グループ ID の名前または値を表示する。値に対応する エ ン ト リ が /etc/passwd や /etc/group に存在しない場合は、対応する名前は表示されずに値だけが表示さ れる。ユーザが同時に複数のグループのメンバーになれるシステムでは 、 -a オプションを指定するとグループの集合が表示される。 ファイル /etc/passwd - ユーザーアカウント情報 /etc/group - グループ情報 関連項目 getgid(2), getgroups(2), getuid(2) 著者 Julianne Frances Haugh ID(1)

ID(1) User Commands ID(1) NAME id - print real and effective user and group IDs SYNOPSIS id [OPTION]... [USERNAME] DESCRIPTION Print user and group information for the specified USERNAME, or (when USERNAME omitted) for the current user. -a ignore, for compatibility with other versions -Z, --context print only the security context of the current user -g, --group print only the effective group ID -G, --groups print all group IDs -n, --name print a name instead of a number, for -ugG -r, --real print the real ID instead of the effective ID, with -ugG -u, --user print only the effective user ID --help display this help and exit --version output version information and exit Without any OPTION, print some useful set of identified information. AUTHOR Written by Arnold Robbins and David MacKenzie. REPORTING BUGS Report id bugs to bug-coreutils@gnu.org GNU coreutils home page: General help using GNU software: Report id translation bugs to COPYRIGHT Copyright © 2010 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later . This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. SEE ALSO The full documentation for id is maintained as a Texinfo manual. If the info and id programs are properly installed at your site, the com- mand info coreutils 'id invocation' should give you access to the complete manual. GNU coreutils 8.4 June 2018 ID(1)