59 lines
494 B
Bash
59 lines
494 B
Bash
#!/usr/bin/env bash
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#正则表达式
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gawk 'BEGIN{FS=","}
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/11/{print $1}
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' test
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#if-else语句
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gawk '{
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if($1 > 20)
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{
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x=$1*20
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print x
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}
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else
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{
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x=$1/2
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print x
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}
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}' test
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#while 语句
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gawk '{
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total = 0
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i=1
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while(i<4)
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{
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total+=$i
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i++
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}
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avg = total/3
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print "Average:".avg
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}' test
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#do-while语句
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gawk '{
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total=0
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i=1
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do
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{
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total += $i
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i++
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}while(total < 150)
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print total }' test
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#for语句
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gawk '{
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total = 0
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for (i=1; i<4; i++)
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{
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total+=$i
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}
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avg = total/3
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print "Average:".avg
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}' test
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