vim /etc/sysctl.conf
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立即生效 sysctl -p
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vim /etc/security/limits.conf
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vim /etc/profile
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vim /home/ora112/.bash_profile
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在ora112用户下执行 source /home/ora112/.bash_profile
vim /etc/hosts
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hostname
保存文件就会立即生效
cd ~
ls
vim .bash_profile
s
. .bash_profile
s
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