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回复 18# gawk
求大神再详细说一下con,感觉很难理解!
还有就123.txt中含有中文的话,仅仅执行gawk "!a[$0]++" 456.txt时会报错
debug>gawk "!a[$0]++" 123.txt
gawk: cmd. line:1: (FILENAME=123.txt FNR=1) fatal: print to "standard output" failed (Exec format error)
但是放到for里就ok了,
for /f %x in ('gawk "!a[$0]++" 123.txt') do echo %x
张三
李四
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