zrong 发表于 2018-8-21 11:40:27

每日shell

# cat test.log　　12 received, 15 packet loss, hello world
　　# cat test.log |sed -n 's/.*received,\(.*\)packet loss,.*/\1/p'
　　15
　　]# gawk '{a=$0;b=gensub(/.+received,(.+)packet loss,.+/,"\\1",a);print b}' test.log
　　15

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