coreutils.html

CLFS(Cross-Compiled Linux From Scratch)的文档 Version CLFS-SVN-20060417

              </tr>
              <tr>
                <td>
                  <a id="readlink" name="readlink"></a><span class=
                  "term"><span><strong class=
                  "command">readlink</strong></span></span>
                </td>
                <td>
                  <p>
                    Reports the value of the given symbolic link
                  </p>
                </td>
              </tr>
              <tr>
                <td>
                  <a id="rm" name="rm"></a><span class=
                  "term"><span><strong class=
                  "command">rm</strong></span></span>
                </td>
                <td>
                  <p>
                    Removes files or directories
                  </p>
                </td>
              </tr>
              <tr>
                <td>
                  <a id="rmdir" name="rmdir"></a><span class=
                  "term"><span><strong class=
                  "command">rmdir</strong></span></span>
                </td>
                <td>
                  <p>
                    Removes directories if they are empty
                  </p>
                </td>
              </tr>
              <tr>
                <td>
                  <a id="seq" name="seq"></a><span class=
                  "term"><span><strong class=
                  "command">seq</strong></span></span>
                </td>
                <td>
                  <p>
                    Prints a sequence of numbers within a given range and
                    with a given increment
                  </p>
                </td>
              </tr>
              <tr>
                <td>
                  <a id="sha1sum" name="sha1sum"></a><span class=
                  "term"><span><strong class=
                  "command">sha1sum</strong></span></span>
                </td>
                <td>
                  <p>
                    Prints or checks 160-bit Secure Hash Algorithm 1 (SHA1)
                    checksums
                  </p>
                </td>
              </tr>
              <tr>
                <td>
                  <a id="shred" name="shred"></a><span class=
                  "term"><span><strong class=
                  "command">shred</strong></span></span>
                </td>
                <td>
                  <p>
                    Overwrites the given files repeatedly with complex
                    patterns, making it difficult to recover the data
                  </p>
                </td>
              </tr>
              <tr>
                <td>
                  <a id="sleep" name="sleep"></a><span class=
                  "term"><span><strong class=
                  "command">sleep</strong></span></span>
                </td>
                <td>
                  <p>
                    Pauses for the given amount of time
                  </p>
                </td>
              </tr>
              <tr>
                <td>
                  <a id="sort" name="sort"></a><span class=
                  "term"><span><strong class=
                  "command">sort</strong></span></span>
                </td>
                <td>
                  <p>
                    Sorts the lines from the given files
                  </p>
                </td>
              </tr>
              <tr>
                <td>
                  <a id="split" name="split"></a><span class=
                  "term"><span><strong class=
                  "command">split</strong></span></span>
                </td>
                <td>
                  <p>
                    Splits the given file into pieces, by size or by number
                    of lines
                  </p>
                </td>
              </tr>
              <tr>
                <td>
                  <a id="stat" name="stat"></a><span class=
                  "term"><span><strong class=
                  "command">stat</strong></span></span>
                </td>
                <td>
                  <p>
                    Displays file or filesystem status
                  </p>
                </td>
              </tr>
              <tr>
                <td>
                  <a id="stty" name="stty"></a><span class=
                  "term"><span><strong class=
                  "command">stty</strong></span></span>
                </td>
                <td>
                  <p>
                    Sets or reports terminal line settings
                  </p>
                </td>
              </tr>
              <tr>
                <td>
                  <a id="sum" name="sum"></a><span class=
                  "term"><span><strong class=
                  "command">sum</strong></span></span>
                </td>
                <td>
                  <p>
                    Prints checksum and block counts for each given file
                  </p>
                </td>
              </tr>
              <tr>
                <td>
                  <a id="sync" name="sync"></a><span class=
                  "term"><span><strong class=
                  "command">sync</strong></span></span>
                </td>
                <td>
                  <p>
                    Flushes file system buffers; it forces changed blocks to
                    disk and updates the super block
                  </p>
                </td>
              </tr>
              <tr>
                <td>
                  <a id="tac" name="tac"></a><span class=
                  "term"><span><strong class=
                  "command">tac</strong></span></span>
                </td>
                <td>
                  <p>
                    Concatenates the given files in reverse
                  </p>
                </td>
              </tr>
              <tr>
                <td>
                  <a id="tail" name="tail"></a><span class=
                  "term"><span><strong class=
                  "command">tail</strong></span></span>
                </td>
                <td>
                  <p>
                    Prints the last ten lines (or the given number of lines)
                    of each given file
                  </p>
                </td>
              </tr>
              <tr>
                <td>
                  <a id="tee" name="tee"></a><span class=
                  "term"><span><strong class=
                  "command">tee</strong></span></span>
                </td>
                <td>
                  <p>
                    Reads from standard input while writing both to standard
                    output and to the given files
                  </p>
                </td>
              </tr>
              <tr>
                <td>
                  <a id="test" name="test"></a><span class=
                  "term"><span><strong class=
                  "command">test</strong></span></span>
                </td>
                <td>
                  <p>
                    Compares values and checks file types
                  </p>
                </td>
              </tr>
              <tr>
                <td>
                  <a id="touch" name="touch"></a><span class=
                  "term"><span><strong class=
                  "command">touch</strong></span></span>
                </td>
                <td>
                  <p>
                    Changes file timestamps, setting the access and
                    modification times of the given files to the current
                    time; files that do not exist are created with zero
                    length
                  </p>
                </td>
              </tr>
              <tr>
                <td>
                  <a id="tr" name="tr"></a><span class=
                  "term"><span><strong class=
                  "command">tr</strong></span></span>
                </td>
                <td>
                  <p>
                    Translates, squeezes, and deletes the given characters
                    from standard input
                  </p>
                </td>
              </tr>
              <tr>
                <td>
                  <a id="true" name="true"></a><span class=
                  "term"><span><strong class=
                  "command">true</strong></span></span>
                </td>
                <td>
                  <p>
                    Does nothing, successfully; it always exits with a status
                    code indicating success
                  </p>
                </td>
              </tr>
              <tr>
                <td>
                  <a id="tsort" name="tsort"></a><span class=
                  "term"><span><strong class=
                  "command">tsort</strong></span></span>
                </td>
                <td>
                  <p>
                    Performs a topological sort; it writes a completely
                    ordered list according to the partial ordering in a given
                    file
                  </p>
                </td>
              </tr>
              <tr>
                <td>
                  <a id="tty" name="tty"></a><span class=
                  "term"><span><strong class=
                  "command">tty</strong></span></span>
                </td>
                <td>
                  <p>
                    Reports the file name of the terminal connected to
                    standard input
                  </p>
                </td>
              </tr>
              <tr>
                <td>
                  <a id="uname" name="uname"></a><span class=
                  "term"><span><strong class=
                  "command">uname</strong></span></span>
                </td>
                <td>
                  <p>
                    Reports system information
                  </p>
                </td>
              </tr>
              <tr>
                <td>
                  <a id="unexpand" name="unexpand"></a><span class=
                  "term"><span><strong class=
                  "command">unexpand</strong></span></span>
                </td>
                <td>
                  <p>
                    Converts spaces to tabs
                  </p>
                </td>
              </tr>
              <tr>
                <td>
                  <a id="uniq" name="uniq"></a><span class=
                  "term"><span><strong class=
                  "command">uniq</strong></span></span>
                </td>
                <td>
                  <p>
                    Discards all but one of successive identical lines
                  </p>
                </td>
              </tr>
              <tr>
                <td>
                  <a id="unlink" name="unlink"></a><span class=
                  "term"><span><strong class=
                  "command">unlink</strong></span></span>
                </td>
                <td>
                  <p>
                    Removes the given file
                  </p>
                </td>
              </tr>
              <tr>
                <td>
                  <a id="users" name="users"></a><span class=
                  "term"><span><strong class=
                  "command">users</strong></span></span>
                </td>
                <td>
                  <p>
                    Reports the names of the users currently logged on
                  </p>
                </td>
              </tr>
              <tr>
                <td>
                  <a id="vdir" name="vdir"></a><span class=
                  "term"><span><strong class=
                  "command">vdir</strong></span></span>
                </td>
                <td>
                  <p>
                    Is the same as <span><strong class="command">ls
                    -l</strong></span>
                  </p>
                </td>
              </tr>
              <tr>
                <td>
                  <a id="wc" name="wc"></a><span class=
                  "term"><span><strong class=
                  "command">wc</strong></span></span>
                </td>
                <td>
                  <p>
                    Reports the number of lines, words, and bytes for each
                    given file, as well as a total line when more than one
                    file is given
                  </p>
                </td>
              </tr>
              <tr>
                <td>
                  <a id="who" name="who"></a><span class=
                  "term"><span><strong class=
                  "command">who</strong></span></span>
                </td>
                <td>
                  <p>
                    Reports who is logged on
                  </p>
                </td>
              </tr>
              <tr>
                <td>
                  <a id="whoami" name="whoami"></a><span class=
                  "term"><span><strong class=
                  "command">whoami</strong></span></span>
                </td>
                <td>
                  <p>
                    Reports the user name associated with the current
                    effective user ID
                  </p>
                </td>
              </tr>
              <tr>
                <td>
                  <a id="yes" name="yes"></a><span class=
                  "term"><span><strong class=
                  "command">yes</strong></span></span>
                </td>
                <td>
                  <p>
                    Repeatedly outputs &ldquo;<span class=
                    "quote">y</span>&rdquo; or a given string until killed
                  </p>
                </td>
              </tr>
            </tbody>
          </table>
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