这将起作用:

sed -e 's/\(.* \)\(.\{8\}\)\(.*\)}/\1-\2.\32/' <<< '123 00}000150}'

\1将具有值:123(从第一个字符到第一个空格的匹配项)

\1 will have value: 123 ( Matches from first character till first space)

\2:00}00015(后8个字符)

\3:0(找到下一个}之前的字符)

\3 : 0 ( Characters until next } is found)