Path: csiph.com!goblin1!goblin.stu.neva.ru!usenet.stanford.edu!not-for-mail From: Grisha Levit Newsgroups: gnu.bash.bug Subject: temp env allows variables that look like array subscripts Date: Tue, 17 Jul 2018 16:51:21 -0400 Lines: 14 Approved: bug-bash@gnu.org Message-ID: NNTP-Posting-Host: lists.gnu.org Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" X-Trace: usenet.stanford.edu 1531860697 19063 208.118.235.17 (17 Jul 2018 20:51:37 GMT) X-Complaints-To: action@cs.stanford.edu To: bug-bash Envelope-to: bug-bash@gnu.org DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=/PVGXT755TqoFz7hqky1t0aOybN+DQLhifBBcB9gEHo=; b=DI6E2gjnMrgO5qtoV7euoDZRpnI8JgiDSEEc7NcZLsnm71W4OnQxbmNaTT+g3BV+HN jAwAxVJTKdijRylwC1AQ0ZW5Cq8c8OrnKhmd4pNv8YXS1YDY++ctFwwX+G9TQYn7KKAa jZNy2B/dungFqZdRVX8yrGZi+pfdeoROgA0bnNrOSENoavSXxlY6yAjgujA7ldr3B1GE 9vgsXl/yZYpaHmGzCbcQCZH1DY9/NgB/Je3eDZ9p8mDt8SSUVr795pDAZp9UQkH6K70O rsq1iipAY2WU3R8g5w767aF4my3nM2Ac3cfM8Jimg4sUCYZVEYEoKkKuXypnbB4pCIZd xnIw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=/PVGXT755TqoFz7hqky1t0aOybN+DQLhifBBcB9gEHo=; b=fDI8e/uUtmAFciVjka/Pg+HuSg7tQvXyAlkWhm6Hd7gYV6RmwoZO4bCeO9couE6ew/ 7RKW+Bx4C0kcOSkOY7PsrqH5GXJuf4gYBtjGXSHo+6IUs4MkjiI9fs+OzU1M8115aXzm 6kR6czLlrYzetI/uskvUdq89gCr9i/dQMD1GIiLv1iAnxH8ugkyJUz4U0TRHyyj5mnLJ 0D1Uji/MeMmDwrt+nRv5R1QVt/FJTS/jC1ySdtWTU1QPQcvYBt4MIAM6nX8e31B+IAlF 9GOWqoa5J1FDXdc3HHQL1mz0R2a+za7l86OgMLBHcqNzz7YaPKRT1T59xNqYhuEVDQ0p iSYQ== X-Gm-Message-State: AOUpUlGzOKkNkVGJUq7LK6jzW85dXu+tsno6pZpPx7UiYiV8qIsue2HM oYa99rBMZcBxu71zGO0JuXUb9FJ6GbffIOob+eCXZfNK X-Google-Smtp-Source: AAOMgpeV+fJnKsSMnsxmfs24mKIYeofknL9gvMEGxLCWmtIGonvYmQ7rNWFNY9Kw7zgsP/8KU5+oB35iTXpQfNHWc7Y= X-Received: by 2002:a2e:2b0e:: with SMTP id q14-v6mr2437904lje.147.1531860692049; Tue, 17 Jul 2018 13:51:32 -0700 (PDT) X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2a00:1450:4864:20::233 X-BeenThere: bug-bash@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Bug reports for the GNU Bourne Again SHell List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Xref: csiph.com gnu.bash.bug:14353 Usually, an assignment preceding a command that would create a variable with an invalid name is rejected and treated like a command name: $ 1=X : bash: 1=X: command not found But when the variable name looks (sort of) like an array subscript assignment, it is accepted and an oddly named variable is created: $ f() { declare -p ${!var*}; }; var[0]=X var[@]=Y f declare -x var[0]="X" declare -x var[@]="Y"