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Shell: operator
2022-07-05 23:01:00 【NoGame_ NoWork】
| Operator
Pipe symbol , The symbol is a vertical line : | .
usage :
command1 | command2
His function is to put the first command command 1 The result of execution is as command2 The input is passed to command 2
for example :
echo "aa bb cc" | awk -F '{print $1}'
echo "aa bb cc" | awk -F '{print $2}'
echo "aa bb cc" | awk -F '{print $3}'
Output is :
aa
bb
cc
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