Linux命令之乐--awk
1.脚本参数传值
#/bin/bash
awk 'BEGIN {a="'$'"} {if(($1==a)) print $2;}' /etc/hosts
执行结果:
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2.awk的多分割条件
分别以空格,/和问号都将作为分隔符
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3. 先匹配到某行,然后分割

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