composer 報The "-e" option does not exist.

[root@localhost ~]# composer -version


  [Symfony\Component\Console\Exception\RuntimeException]  
  The "-e" option does not exist.                         


Exception trace:
 () at phar:///www/server/php/80/bin/composer/vendor/symfony/console/Input/ArgvInput.php:125
 Symfony\Component\Console\Input\ArgvInput->parseShortOptionSet() at phar:///www/server/php/80/bin/composer/vendor/symfony/console/Input/ArgvInput.php:105
 Symfony\Component\Console\Input\ArgvInput->parseShortOption() at phar:///www/server/php/80/bin/composer/vendor/symfony/console/Input/ArgvInput.php:84
 Symfony\Component\Console\Input\ArgvInput->parse() at phar:///www/server/php/80/bin/composer/vendor/symfony/console/Input/Input.php:54
 Symfony\Component\Console\Input\Input->bind() at phar:///www/server/php/80/bin/composer/vendor/symfony/console/Command/Command.php:204
 Symfony\Component\Console\Command\Command->run() at phar:///www/server/php/80/bin/composer/vendor/symfony/console/Application.php:835
 Symfony\Component\Console\Application->doRunCommand() at phar:///www/server/php/80/bin/composer/vendor/symfony/console/Application.php:185
 Symfony\Component\Console\Application->doRun() at phar:///www/server/php/80/bin/composer/src/Composer/Console/Application.php:312
 Composer\Console\Application->doRun() at phar:///www/server/php/80/bin/composer/vendor/symfony/console/Application.php:117
 Symfony\Component\Console\Application->run() at phar:///www/server/php/80/bin/composer/src/Composer/Console/Application.php:124
 Composer\Console\Application->run() at phar:///www/server/php/80/bin/composer/bin/composer:63
 require() at /www/server/php/80/bin/composer:24

list [--xml] [--raw] [--format FORMAT] [--] [<namespace>]

原來是打錯指令了（https://github.com/composer/composer/issues/6645）

This is expected. When using a single dash, this uses option shortcuts, which can be combined together. So composer -version is the same than composer -v -e -r -s -i -o -n (and most of these options don't exist).

What you want is probably composer --version. Note that 2 dashes used for long option names rather than shortcuts.

composer -v

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