印有纸面。
根据文本档案中的数据:
string1
string2 gibberish
gibberish
string3 gibberish
string4
• 如何利用k子或ed子去除string2
(包括)和string3
之间的所有线。 (不包括string3
?)
最后:
string1
string3
string4
印有纸面。
根据文本档案中的数据:
string1
string2 gibberish
gibberish
string3 gibberish
string4
• 如何利用k子或ed子去除string2
(包括)和string3
之间的所有线。 (不包括string3
?)
最后:
string1
string3
string4
你可以尝试这样做。 “指示2”之前的任何内容都不会删除。
awk BEGIN{f=0}
{
match($0,"string2")
if(RSTART){
print substr($0,1,RSTART-1)
f=1
next
}
match($0,"string3")
if(RSTART){
$0=substr($0,RSTART)
f=0
}
}
f==0{print}
file
产出
$ cat file
string1 blah blah
text before string2 junk
gibberish
gibberis string3 text here
string4
$ ./shell.sh
string1 blah blah
text before
string3 text here
string4
Are string1, string2,string3, etc. each on different lines? In that case, you can use awk:
awk /string2/{flag=1} /string3/{flag=0} !flag
或者说:
sed /string3/p; /string2/,/string3/d
将在上开展工作。
sed
/string2/,/string3/bdeleting
b
:deleting
s/string3.*/string3/
/string3/b
d
假设我们在
这里的样本是:
s/string2.*?(?=string3)//sg
将把所有东西从<条码>中删除。 最多但不包括<代码>string3。
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