求sed 或者awk的字符处理

Herowinter

回复 1# softiger

1. sed -nr '/<\?xml/,${//s/.*(<\?xml.*)/\1/;p}' i
   
2. <?xml version="1.0" encoding="UTF-8"?>
   
3. adsfasdfasdfasdf
   
4. gasdgwegqweg
   
5. egqewqg

复制代码

聆雨淋夜

sed -r '/<\?/s/^[^<]+//' file
Setting CLI environment variables....
<?xml version="1.0" encoding="UTF-8"?>
adsfasdfasdfasdf
gasdgwegqweg
egqewqg

798229502

awk -F "<" '/<?xml/{print "<"$2;a=NR}a&&NR>a{print $0}'1.txt

九方流云

sed -nr ':1;N;$!b1;s/[^<]+//p' file