是否支持locate/grep命令？

Question

如果docker支持我在ubuntu中使用的命令：

locate filename

和

grep -Hrn  -A 5 'search text' --include="*.php"  /DirectoryPath/

如果是，我如何安装它们？

在我的中添加命令之后，更新了#2 :

RUN apt-get install -y grep mlocate

我可以运行命令：

grep -Hrn  -A 5 'var' --include="*.conf"  /var/www

与有效的结果，但错误与定位：

root@11ed27f97ac4:/var/www# locate -help
Usage: locate [OPTION]... [PATTERN]...
Search for entries in a mlocate database.

  -A, --all              only print entries that match all patterns
  -b, --basename         match only the base name of path names
  -c, --count            only print number of found entries
  -d, --database DBPATH  use DBPATH instead of default database (which is
                         /var/lib/mlocate/mlocate.db)
  -e, --existing         only print entries for currently existing files
  -L, --follow           follow trailing symbolic links when checking file
                         existence (default)
  -h, --help             print this help
  -i, --ignore-case      ignore case distinctions when matching patterns
  -l, --limit, -n LIMIT  limit output (or counting) to LIMIT entries
  -m, --mmap             ignored, for backward compatibility
  -P, --nofollow, -H     don't follow trailing symbolic links when checking file
                         existence
  -0, --null             separate entries with NUL on output
  -S, --statistics       don't search for entries, print statistics about each
                         used database
  -q, --quiet            report no error messages about reading databases
  -r, --regexp REGEXP    search for basic regexp REGEXP instead of patterns
      --regex            patterns are extended regexps
  -s, --stdio            ignored, for backward compatibility
  -V, --version          print version information
  -w, --wholename        match whole path name (default)

Report bugs to mitr@redhat.com.
root@11d2e77af9c4:/var/www# mlocate -i error.log 
mlocate: can not stat () `/var/lib/mlocate/mlocate.db': No such file or directory

为什么在最后一行出错？好像我用了有效的语法？

提前感谢！

Answer 1

在您的docker文件中，必须添加以下命令：

RUN apt install -y grep mlocate

Answer 2

在运行“定位”之前将其添加到您的Dockerfile中

RUN /etc/cron.daily/mlocate