sed -i 's/original/new/g'
详细说明:
sed
= Stream EDitor(Stream编辑)-i
= in-place (i.e. save back to the original file)(回写源被替换文件)-
The command string:
s
= the substitute command(替换命令)original
= a regular expression describing the word to replace (or just the word itself)(被替换)new
= the text to replace it with (替换为)g
= global (i.e. replace all and not just the first occurrence) (全部替换)
-
file.txt
= the file name