今天在登陸數(shù)據(jù)庫(kù)的時(shí)候使用！sql登錄

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[oracle@p520b ~]$ !sql

sqlplus /  as sysdba

SQL*Plus: Release 11.2.0.4.0 Production on Wed Feb 20 10:40:07 2019

Copyright (c) 1982, 2013, Oracle.  All rights reserved.

Connected to:

Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production

With the Partitioning, Oracle Label Security, OLAP, Data Mining,

Oracle Database Vault and Real Application Testing options

SYS@gbps>

！sql  這個(gè)感嘆號(hào)在shell中是直接調(diào)用history中執(zhí)行過(guò)的命令，可以是數(shù)字，也可以是字符串， !sql就只引用最近以sql開(kāi)頭的命令

   你把.bash_history清空再執(zhí)行"!sql"就不行了