René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"When input prompt starts with '-': /bin/bash: line 1: history: -1: invalid option","articleBody":"## Bug Report\n\n- [ ] Yes, I reviewed the [contribution guidelines](https://make.wordpress.org/cli/handbook/contributing/).\n- [ ] Yes, more specifically, I reviewed the guidelines on [how to write clear bug reports](https://make.wordpress.org/cli/handbook/bug-reports/).\n\n**Describe the current, buggy behavior**\n\nType something that starts with `-`, i.e. `-1`:\n\n```\nwp> -1\n/bin/bash: line 1: history: -1: invalid option\nhistory: usage: history [-c] [-d offset] [n] or history -anrw [filename] or history -ps arg [arg...]\n=> int(-1)\n```\n\n**Describe how other contributors can replicate this bug**\n\n```\n$ wp shell\nwp> -1\n/bin/bash: line 1: history: -1: invalid option\nhistory: usage: history [-c] [-d offset] [n] or history -anrw [filename] or history -ps arg [arg...]\n=> int(-1)\n```\n\n**Describe what you would expect as the correct outcome**\n\nIf it's negative number in PHP, it should evaluate to negative number:\n\n```\nwp> -1\n=> int(-1)\n```\n\n**Let us know what environment you are running this on**\n\n```\nOS:\tLinux 5.10.0-31-amd64 #1 SMP Debian 5.10.221-1 (2024-07-14) x86_64\nShell:\t/bin/bash\nPHP binary:\t/usr/local/php8.3/bin/php\nPHP version:\t8.3.24\nphp.ini used:\t/usr/local/php8.3/conf/php.ini\nMySQL binary:\t/usr/bin/mariadb\nMySQL version:\tmariadb  Ver 15.1 Distrib 10.5.29-MariaDB, for debian-linux-gnu (x86_64) using  EditLine wrapper\nSQL modes:\tERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION\nWP-CLI root dir:\tphar://wp-cli.phar/vendor/wp-cli/wp-cli\nWP-CLI vendor dir:\tphar://wp-cli.phar/vendor\nWP_CLI phar path:\tphar:///usr/local/bin/wp\nWP-CLI packages dir:\nWP-CLI cache dir:\t/root/.wp-cli/cache\nWP-CLI global config:\t/chroot/var/www/config/wp-cli.yml\nWP-CLI project config:\nWP-CLI version:\t2.12.0\n```\n\n**Provide a possible solution**\n\nLikely the input prompt in https://github.com/wp-cli/shell-command/blob/main/src/WP_CLI/Shell/REPL.php#L135-L144 need to be escaped?\n\nJust leave this section out if you don't know how to fix it.\n\n**Provide additional context/Screenshots**\n\nAdd any other context about the problem here.\n\nIf applicable, add screenshots to help explain (you can just drag&drop images into the Github issue).\n","author":{"url":"https://github.com/gedex","@type":"Person","name":"gedex"},"datePublished":"2025-08-20T10:02:40Z","url":"https://github.com/wp-cli/shell-command/issues/75"}