ubuntu10.04下计算sha1

用法：sha1sum [选项]... [文件]...
显示或检查 SHA1(160-bit) 校验和。
若没有文件选项，或者文件处为"-"，则从标准输入读取。

  -b, --binary        以二进制模式读取
  -c, --check             read SHA1 sums from the FILEs and check them
  -t, --text              read in text mode (default)

The following three options are useful only when verifying checksums:
      --quiet             don't print OK for each successfully verified file
      --status            don't output anything, status code shows success
  -w, --warn              warn about improperly formatted checksum lines

      --help     显示此帮助信息并退出
      --version  输出版本信息并退出

The sums are computed as described in FIPS-180-1.  When checking, the input
should be a former output of this program.  The default mode is to print
a line with checksum, a character indicating type (`*' for binary, ` ' for
text), and name for each FILE.

请向[email protected] 报告sha1sum 的错误
GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
General help using GNU software: <http://www.gnu.org/gethelp/>
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