用sed命令模拟tac
用sed命令模拟tac
用sed命令模拟tac
原始数据 www.2cto.com
Shell代码
cat data
This is the header line.
This is the first data line.
This is the second data line.
This is the last line.
Shell代码
tac data
This is the last line.
This is the second data line.
This is the first data line.
This is the header line.
Shell代码 www.2cto.com
sed -n '{1!G;h;$p}' data
This is the last line.
This is the second data line.
This is the first data line.
This is the header line.
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