打印文件中的可打印字符的字符串。

二进制文件中有很多文本信息，比如打印信息、调试信息、帮助信息、错误等。只要这些信息都存在于二进制文件中，就可以用 strings 命令将其转储到屏幕上。

		
[root@localhost ~]# strings /bin/ls | grep "list"
%s: not listing already-listed directory
  -A, --almost-all           do not list implied . and ..
  -B, --ignore-backups       do not list implied entries ending with ~
  -C                         list entries by columns
  -d, --directory            list directories themselves, not their contents
  -g                         like -l, but do not list owner
  -G, --no-group             in a long listing, don't print group names
                             follow symbolic links listed on the command line
      --hide=PATTERN         do not list implied entries matching shell PATTERN
  -I, --ignore=PATTERN       do not list implied entries matching shell PATTERN
  -l                         use a long listing format
  -m                         fill width with a comma separated list of entries
  -n, --numeric-uid-gid      like -l, but list numeric user and group IDs
  -o                         like -l, but do not list group information
  -R, --recursive            list subdirectories recursively
  -U                         do not sort; list entries in directory order
  -x                         list entries by lines instead of by columns
  -1                         list one file per line.  Avoid '\n' with -q or -b