转自
/Linux/-07/64392.htm来源：Linux社区作者：pan_tian
清除history记录
[oracle@ ~]$ history
-c
[oracle@ ~]$ history
32-07-04 01:20:40 history
[oracle@ ~]$
注:清除history之后，.bash_history里仍会有历史记录
1.vi .bash_history
关于.bash_history的配置
export
HISTCONTROL=ignoreboth
Don’t save duplicates
export HISTSIZE=10000
这个是针对history命令的设置，The number of commands to remember in the command
history. The default value is 500.
export HISTFILESIZE=10000
这个是针对history文件(.bash_history)的设置，The maximum number of lines
containedinthehistory file.When this
variable is assigned a value, the his-tory file is truncated, if
necessary, byremovingthe
oldestentries, to contain no more than that
number of lines.The default value is
500.The history fileis
alsotruncatedtothis size after writing it when an interactive
shell exits.
export HISTIGNORE='ls'
A colon-separated list of patterns used to decide which command
lines should be saved on the history list.Each pattern is anchored
at the beginningof the line and must match the
complete line
以上的关于history的说明都可以使用man
bash查的到,如果想要让你的配置永久生效，可以把export命令写到.bash_profile或者全局配置文件/etc/profile里
2.history
模糊查询，history | grep -i "xxx"
[Oracle@ ~]$ history |
grep -i "FND"
34-07-04 01:29:15 history | grep -i "FND"
35-07-04 01:29:30 FNDLOAD apps/apps 0 Y DOWNLOAD
$FND_TOP/patch/115/import/affrmcus.lct PT_CUSTOM_FUC.ldt
FND_FORM_CUSTOM_RULES function_name="INV_INVTOMAI"
36-07-04 01:29:33 history | grep -i "FND"
[oracle@ ~]$
如何让history可以有时间戳显示
# export HISTTIMEFORMAT='%F %T '
....
1027-07-04 01:12:53 ls
/etc/bash*
1028-07-04 01:13:17 vi
/etc/bashrc
1029-07-04 01:16:04
history
[oracle@ ~]$
清除history记录
[oracle@ ~]$ history -c
[oracle@ ~]$ history
32-07-04 01:20:40 history
[oracle@ ~]$
注:清除history之后，.bash_history里仍会有历史记录
如何不让系统记录历史命令
# export HISTSIZE=0
# history
# [Note that history did not display anything]
3.使用Control+R来搜索命令
命令行中输入Control+R，然后输入过往命令的key word，你就很容易找到以前执行过的命令了
(reverse-i-search)`FND':
FNDLOAD apps/apps 0 Y DOWNLOAD
$FND_TOP/patch/115/import/affrmcus.lct PT_CUSTOM_FUC.ldt
FND_FORM_CUSTOM_RULES function_name="INV_INVTOMAI"
