[求助] sed -e "s@^@ @"啥子意思

如题，查了半天没查到：）

sorry，查到了，原来是@在搜索的时候要用原名啊（at sign），答案如下，希望大家也可以用到：
[addr1[,addr2]]s/expr/string/[flags]
Searches the indicated lines for a string of characters matching the expression defined by expr, and replaces that set of characters with string. This command's operation is modified by the g, p, and w file flags.[Table Note 4] If either expr or string includes a slash (/), you must escape the literal slash with a backslash (s/path/path\/file/) or use alternative delimiters such as the at sign (@) or question mark (?). For example, s@path@path/file@ replaces path with path/file.

简而言之就是作分割符，就不用对regex里的“/”转义了...

分隔符不一定必须是 ／ 的，只要保证三个符号一致就可以。