启动mysql时遇到的问题

zk6312

root@dhcp-13-111 root]# mysql -h
mysql: option requires an argument -- h
mysql  Ver 11.18 Distrib 3.23.54, for redhat-linux-gnu (i386)
Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
This software comes with ABSOLUTELY NO WARRANTY. This is free software,
and you are welcome to modify and redistribute it under the GPL license

Usage: mysql [OPTIONS] [database]

  -?, --help            Display this help and exit.
  -A, --no-auto-rehash  No automatic rehashing. One has to use 'rehash' to
                        get table and field completion. This gives a quicker
                        start of mysql and disables rehashing on reconnect.
  -B, --batch           Print results with a tab as separator, each row on
                        a new line. Doesn't use history file.
  --character-sets-dir=...
                        Directory where character sets are located.
  -C, --compress        Use compression in server/client protocol.
  -D, --database=..     Database to use.
  --default-character-set=...
                        Set the default character set.
  -e, --execute=...     Execute command and quit. (Output like with --batch)
  -E, --vertical        Print the output of a query (rows) vertically.
  -f, --force           Continue even if we get an sql error.
  -g, --no-named-commands
                        Named commands are disabled. Use \* form only, or
                        use named commands only in the beginning of a line
                        ending with a semicolon (;) Since version 10.9 the
                        client now starts with this option ENABLED by
                        default! Disable with '-G'. Long format commands
                        still work from the first line.
  -G, --enable-named-commands
                        Named commands are enabled. Opposite to -g.
  -i, --ignore-spaces   Ignore spaces after function names.
  -h, --host=...        Connect to host.
  -H, --html            Produce HTML output.
  --local-infile=[1|0]  Enable/disable LOAD DATA LOCAL INFILE
  -L, --skip-line-numbers
                        Don't write line number for errors.
  --no-pager            Disable pager and print to stdout. See interactive
                        help (\h) also.
  --no-tee              Disable outfile. See interactive help (\h) also.
  -n, --unbuffered      Flush buffer after each query.
  -N, --skip-column-names
                        Don't write column names in results.
  -O, --set-variable var=option
                        Give a variable an value. --help lists variables.
  -o, --one-database    Only update the default database. This is useful
                        for skipping updates to other database in the update
                        log.
  --pager[=...]         Pager to use to display results. If you don't supply
                        an option the default pager is taken from your ENV
                        variable PAGER ().
                        Valid pagers are less, more, cat [> filename], etc.
                        See interactive help (\h) also. This option does
                        not work in batch mode.
  -p[password], --password[=...]
                        Password to use when connecting to server
                        If password is not given it's asked from the tty.

  -P, --port=...        Port number to use for connection.
  -q, --quick           Don't cache result, print it row by row. This may
                        slow down the server if the output is suspended.
                        Doesn't use history file.
  -r, --raw             Write fields without conversion. Used with --batch
  -s, --silent          Be more silent.
  -S  --socket=...      Socket file to use for connection.
  -t, --table           Output in table format.
  -T, --debug-info      Print some debug info at exit.
  --tee=...             Append everything into outfile. See interactive help
                        (\h) also. Does not work in batch mode.
  -u, --user=#          User for login if not current user.
  -U, --safe-updates[=#], --i-am-a-dummy[=#]
                        Only allow UPDATE and DELETE that uses keys.
  -v, --verbose         Write more. (-v -v -v gives the table output format)
  -V, --version         Output version information and exit.
  -w, --wait            Wait and retry if connection is down.

Default options are read from the following files in the given order:
/etc/my.cnf /var/lib/mysql/my.cnf ~/.my.cnf
The following groups are read: mysql client
The following options may be given as the first argument:
--print-defaults        Print the program argument list and exit
--no-defaults           Don't read default options from any options file
--defaults-file=#       Only read default options from the given file #
--defaults-extra-file=# Read this file after the global files are read

Possible variables for option --set-variable (-O) are:
connect_timeout       current value: 0
max_allowed_packet    current value: 16777216
net_buffer_length     current value: 16384
select_limit          current value: 1000
max_join_size         current value: 1000000，现在我该怎么做

zk6312

[root@dhcp-13-111 root]# mysql
ERROR 2002: Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
[root@dhcp-13-111 root]# /etc/rc.d/init.d/mysqld start
初始化 MySQL 数据库： Sorry, the host 'dhcp-13-111' could not be looked up.
Please configure the 'hostname' command to return a correct hostname.
If you want to solve this at a later stage, restart this script with
the --force option
                                                           [失败]
我该用什么方法启动

pengo

[root@localhost local]# mysql
ERROR 2002: Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)
[root@localhost local]# /etc/rc.d/init.d/mysqld start
启动 MySQL：                                               [  确定  ]
[root@localhost local]# mysql -u root
ERROR 2002: Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)


怎么办哦，我搞了好久都进不了。。。