unix commands question - 未名空间MITBBS历史存档

国际科技财经博客移民网络热点娱乐民生时事公众号

Redian新闻

>未名空间

>Unix - 噫吁兮，危乎高哉

unix commands question

unix commands question# Unix - 噫吁兮，危乎高哉

b*s2001-01-25 08:01

1 楼

What command removes the read and write permissions for everyone
except the owner of a file named "myfile"? All other permissions should
remain the same.
What command prints out the amount of space used by every file or
subdirectory in the current directory (except hidden files)?
du -s?
What command would you use to remove all the .o files from the current
directory and all directories at all levels below the current directory?
pretty confused about regular expressions here.
thanks a million

w*r2001-01-25 08:01

2 楼

chmod og-rw myfile
du -k in kb
rm `find . -name "*.o"`

【在 b***s 的大作中提到】

: What command removes the read and write permissions for everyone
: except the owner of a file named "myfile"? All other permissions should
: remain the same.
: What command prints out the amount of space used by every file or
: subdirectory in the current directory (except hidden files)?
: du -s?
: What command would you use to remove all the .o files from the current
: directory and all directories at all levels below the current directory?
: pretty confused about regular expressions here.
: thanks a million