awk 'BEGIN{var=" ' "$file" ' "}END{print var;}' "$file"题{var=" ' "$file" ' "}边符号意思第步"$file" 比a.log第二部" ' a.log' "啥意思单引号起作用cat ct.log | awk -F '{print $1 "." $3}'ct.log文件: 1997/06/30 23:54:34 +0800 cwot: fail to login jack from f891@presenter