commandlinefu.cn>random 10
ls -1 | while read file; do new_file=$(echo $file | sed s/\ /_/g); mv "$file" "$new_file"; done
find public_html/ -type d -exec chmod 775 {} \;
du -g | perl -ne 'print if (tr#/#/# == <maximum depth>)'
cat | gcc -x c -o a.out - && ./a.out && rm a.out
egrep 'Failed password for invalid' /var/log/secure | awk '{print $13}' | uniq
od -An -N10 -x /dev/random | md5sum | sed -r 's/^(.{10}).*$/\1/; s/([0-9a-f]{2})/\1:/g; s/:$//;'
echo - | sed -e :a -e 's/^.\{1,50\}$/&-/;ta'
random [count=1]: 随机显示[count]条命令和介绍