echo=echo for cmd in echo /bin/echo; do $cmd >/dev/null 2>&1 || continue if ! $cmd -e "" | grep -qE '^-e'; then echo=$cmd break fi done
by freeterman - Shell - 2016-08-17 09:49:17 阅读(1063) 回复(3)
在一篇文章中看到 [quote]以下是一种rhosts后门: % mv login loginold % echo 'echo "+ +" rhosts, login % echo "/bin/sh loginold" > .login [/quote] % echo 'echo "+ +" rhosts, login 这行看不懂,是不是写错了?[/code]