linux tar 报错 Removing leading ‘/‘ from member names 解决方法

jiawang

在使用tar命令进行压缩打包的时候我们常常会遇到下面的错误。
虽然它不会影响我们最后的压缩打包，但是间接说明了我们的命令是有问题的。接下来我们来看看解决办法。
报错现象：
[root@sztech data]# tar Jcvf /opt/mysql-$(date +%F).tar.xz /usr/local/mysql/data/
tar: Removing leading `/' from member names
意思就是让我们将路径的 ‘/’ 去除掉。

问题原因：   因为我们使用的是绝对路径，而不是相对路径。而tar 命令默认是采用相对路径来进行压缩打包的。
解决办法：  我们需要使用参数 -P(大写)来允许我们使用绝对路径进行压缩打包。

注意网上有些文档是 将 -P参数加在 f 参数后面   ，那么这样是会报错的。

[root@sztech ~]# tar Jcvfp /opt/mysql-$(date +%F).tar /usr/local/mysql/data/
tar: Removing leading `/' from member names



我们一般是将 f  参数放到最后，-f  参数后面接上文件名 ， 将 P 放在 f前即可。
[root@sztech ~]#  tar JcvPf /opt/mysql-$(date +%F).tar.xz /usr/local/mysql/data/
/usr/local/mysql/data/
/usr/local/mysql/data/ibdata1
/usr/local/mysql/data/ib_logfile1
/usr/local/mysql/data/undo_001
/usr/local/mysql/data/undo_002
/usr/local/mysql/data/ib_logfile0
/usr/local/mysql/data/mysql.ibd
/usr/local/mysql/data/mysql/
/usr/local/mysql/data/mysql/general_log_195.sdi
/usr/local/mysql/data/mysql/general_log.CSM
/usr/local/mysql/data/mysql/general_log.CSV
/usr/local/mysql/data/mysql/slow_log_196.sdi
/usr/local/mysql/data/mysql/slow_log.CSM
/usr/local/mysql/data/mysql/slow_log.CSV
/usr/local/mysql/data/performance_schema/
/usr/local/mysql/data/performance_schema/cond_instances_72.sdi
/usr/local/mysql/data/performance_schema/events_waits_cur_73.sdi
/usr/local/mysql/data/performance_schema/events_waits_his_74.sdi
/usr/local/mysql/data/performance_schema/events_waits_his_75.sdi
/usr/local/mysql/data/performance_schema/events_waits_sum_76.sdi
/usr/local/mysql/data/performance_schema/events_waits_sum_77.sdi
/usr/local/mysql/data/performance_schema/events_waits_sum_78.sdi
/usr/local/mysql/data/performance_schema/events_waits_sum_79.sdi
/usr/local/mysql/data/performance_schema/events_waits_sum_80.sdi
/usr/local/mysql/data/performance_schema/events_waits_sum_81.sdi
/usr/local/mysql/data/performance_schema/file_instances_82.sdi
/usr/local/mysql/data/performance_schema/file_summary_by__83.sdi
/usr/local/mysql/data/performance_schema/file_summary_by__84.sdi
/usr/local/mysql/data/performance_schema/host_cache_85.sdi
/usr/local/mysql/data/performance_schema/mutex_instances_86.sdi
/usr/local/mysql/data/performance_schema/objects_summary__87.sdi
/usr/local/mysql/data/performance_schema/performance_time_88.sdi
/usr/local/mysql/data/performance_schema/rwlock_instances_89.sdi
/usr/local/mysql/data/performance_schema/setup_actors_90.sdi
/usr/local/mysql/data/performance_schema/setup_consumers_91.sdi
/usr/local/mysql/data/performance_schema/setup_instrument_92.sdi
/usr/local/mysql/data/performance_schema/setup_objects_93.sdi
/usr/local/mysql/data/performance_schema/setup_threads_94.sdi
/usr/local/mysql/data/performance_schema/table_io_waits_s_95.sdi
/usr/local/mysql/data/performance_schema/table_io_waits_s_96.sdi
/usr/local/mysql/data/performance_schema/table_lock_waits_97.sdi
/usr/local/mysql/data/performance_schema/threads_98.sdi
/usr/local/mysql/data/performance_schema/events_stages_cu_99.sdi
/usr/local/mysql/data/performance_schema/events_stages_hi_100.sdi
/usr/local/mysql/data/performance_schema/events_stages_hi_101.sdi
/usr/local/mysql/data/performance_schema/events_stages_su_102.sdi
/usr/local/mysql/data/performance_schema/events_stages_su_103.sdi
/usr/local/mysql/data/performance_schema/events_stages_su_104.sdi
/usr/local/mysql/data/performance_schema/events_stages_su_105.sdi
/usr/local/mysql/data/performance_schema/events_stages_su_106.sdi
/usr/local/mysql/data/performance_schema/events_statement_107.sdi
/usr/local/mysql/data/performance_schema/events_statement_108.sdi
/usr/local/mysql/data/performance_schema/events_statement_109.sdi
/usr/local/mysql/data/performance_schema/events_statement_110.sdi
/usr/local/mysql/data/performance_schema/events_statement_111.sdi
/usr/local/mysql/data/performance_schema/events_statement_112.sdi
/usr/local/mysql/data/performance_schema/events_statement_113.sdi
/usr/local/mysql/data/performance_schema/events_statement_114.sdi
/usr/local/mysql/data/performance_schema/events_statement_115.sdi
/usr/local/mysql/data/performance_schema/events_statement_116.sdi
/usr/local/mysql/data/performance_schema/events_statement_117.sdi
/usr/local/mysql/data/performance_schema/events_statement_118.sdi
/usr/local/mysql/data/performance_schema/events_transacti_119.sdi
/usr/local/mysql/data/performance_schema/events_transacti_120.sdi
/usr/local/mysql/data/performance_schema/events_transacti_121.sdi
/usr/local/mysql/data/performance_schema/events_transacti_122.sdi
/usr/local/mysql/data/performance_schema/events_transacti_123.sdi
/usr/local/mysql/data/performance_schema/events_transacti_124.sdi
/usr/local/mysql/data/performance_schema/events_transacti_125.sdi
/usr/local/mysql/data/performance_schema/events_transacti_126.sdi
/usr/local/mysql/data/performance_schema/events_errors_su_127.sdi
/usr/local/mysql/data/performance_schema/events_errors_su_128.sdi
/usr/local/mysql/data/performance_schema/events_errors_su_129.sdi
/usr/local/mysql/data/performance_schema/events_errors_su_130.sdi
/usr/local/mysql/data/performance_schema/events_errors_su_131.sdi
/usr/local/mysql/data/performance_schema/users_132.sdi
/usr/local/mysql/data/performance_schema/accounts_133.sdi
/usr/local/mysql/data/performance_schema/hosts_134.sdi
/usr/local/mysql/data/performance_schema/socket_instances_135.sdi
/usr/local/mysql/data/performance_schema/socket_summary_b_136.sdi
/usr/local/mysql/data/performance_schema/socket_summary_b_137.sdi
/usr/local/mysql/data/performance_schema/session_connect__138.sdi
/usr/local/mysql/data/performance_schema/session_account__139.sdi
/usr/local/mysql/data/performance_schema/memory_summary_g_140.sdi
/usr/local/mysql/data/performance_schema/memory_summary_b_141.sdi
/usr/local/mysql/data/performance_schema/memory_summary_b_142.sdi
/usr/local/mysql/data/performance_schema/memory_summary_b_143.sdi
/usr/local/mysql/data/performance_schema/memory_summary_b_144.sdi
/usr/local/mysql/data/performance_schema/table_handles_145.sdi
/usr/local/mysql/data/performance_schema/metadata_locks_146.sdi
/usr/local/mysql/data/performance_schema/data_locks_147.sdi
/usr/local/mysql/data/performance_schema/data_lock_waits_148.sdi
/usr/local/mysql/data/performance_schema/replication_conn_149.sdi
/usr/local/mysql/data/performance_schema/replication_grou_150.sdi
/usr/local/mysql/data/performance_schema/replication_conn_151.sdi
/usr/local/mysql/data/performance_schema/replication_appl_152.sdi
/usr/local/mysql/data/performance_schema/replication_appl_153.sdi
/usr/local/mysql/data/performance_schema/replication_appl_154.sdi
/usr/local/mysql/data/performance_schema/replication_appl_155.sdi
/usr/local/mysql/data/performance_schema/replication_grou_156.sdi
/usr/local/mysql/data/performance_schema/replication_appl_157.sdi
/usr/local/mysql/data/performance_schema/replication_appl_158.sdi
/usr/local/mysql/data/performance_schema/log_status_159.sdi
/usr/local/mysql/data/performance_schema/prepared_stateme_160.sdi
/usr/local/mysql/data/performance_schema/user_variables_b_161.sdi
/usr/local/mysql/data/performance_schema/status_by_accoun_162.sdi
/usr/local/mysql/data/performance_schema/status_by_host_163.sdi
/usr/local/mysql/data/performance_schema/status_by_thread_164.sdi
/usr/local/mysql/data/performance_schema/status_by_user_165.sdi
/usr/local/mysql/data/performance_schema/global_status_166.sdi
/usr/local/mysql/data/performance_schema/session_status_167.sdi
/usr/local/mysql/data/performance_schema/variables_by_thr_168.sdi
/usr/local/mysql/data/performance_schema/global_variables_169.sdi
/usr/local/mysql/data/performance_schema/session_variable_170.sdi
/usr/local/mysql/data/performance_schema/variables_info_171.sdi
/usr/local/mysql/data/performance_schema/persisted_variab_172.sdi
/usr/local/mysql/data/performance_schema/user_defined_fun_173.sdi
/usr/local/mysql/data/auto.cnf
/usr/local/mysql/data/ca-key.pem
/usr/local/mysql/data/ca.pem
/usr/local/mysql/data/server-key.pem
/usr/local/mysql/data/server-cert.pem
/usr/local/mysql/data/client-key.pem
/usr/local/mysql/data/client-cert.pem
/usr/local/mysql/data/private_key.pem
/usr/local/mysql/data/public_key.pem
/usr/local/mysql/data/sys/
/usr/local/mysql/data/sys/sys_config.ibd
/usr/local/mysql/data/ib_buffer_pool
/usr/local/mysql/data/sztech.err
/usr/local/mysql/data/ibtmp1
/usr/local/mysql/data/binlog.000001
/usr/local/mysql/data/binlog.index
/usr/local/mysql/data/sztech.pid
[root@sztech ~]#


在使用tar命令的时候要注意  f  参数的位置。避免错误