I am trying to replace sam_18 with sam in a text file but it doesnt produce the correct result.
我试图用文本文件中的sam替换sam_18,但它不会产生正确的结果。
sed -i -e 's/sam_18/sam/g'
It doesnt produce any output. I am a bit confused if it is considering '_' in between as a special character. Any help?Thanks
它不会产生任何输出。如果它将'_'视为特殊字符,我有点困惑。有什么帮助吗?谢谢
1 个解决方案
#1
Option -i requires a file (at least) to perform the in-place substitution:
选项-i需要一个文件(至少)来执行就地替换:
sed -i -e 's/sam_18/sam/g' myfile
If no file are provided, sed reads from the standard input (or an input pipe). You cannot use -i in that case. You would then do something like:
如果没有提供文件,则sed从标准输入(或输入管道)读取。在这种情况下你不能使用-i。然后你会做类似的事情:
cat myfile | sed -e 's/sam_18/sam/g' > newfile
#1
Option -i requires a file (at least) to perform the in-place substitution:
选项-i需要一个文件(至少)来执行就地替换:
sed -i -e 's/sam_18/sam/g' myfile
If no file are provided, sed reads from the standard input (or an input pipe). You cannot use -i in that case. You would then do something like:
如果没有提供文件,则sed从标准输入(或输入管道)读取。在这种情况下你不能使用-i。然后你会做类似的事情:
cat myfile | sed -e 's/sam_18/sam/g' > newfile