239 lines
3.2 KiB
HTML
239 lines
3.2 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<HTML
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><HEAD
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><TITLE
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>Summary</TITLE
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><META
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NAME="GENERATOR"
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CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK
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REL="HOME"
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TITLE="Introduction to Linux"
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HREF="index.html"><LINK
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REL="UP"
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TITLE="I/O redirection"
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HREF="chap_05.html"><LINK
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REL="PREVIOUS"
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TITLE="Filters"
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HREF="sect_05_03.html"><LINK
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REL="NEXT"
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TITLE="Exercises"
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HREF="sect_05_05.html"></HEAD
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><BODY
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CLASS="sect1"
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BGCOLOR="#FFFFFF"
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TEXT="#000000"
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LINK="#0000FF"
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VLINK="#840084"
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ALINK="#0000FF"
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><DIV
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CLASS="NAVHEADER"
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><TABLE
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SUMMARY="Header navigation table"
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WIDTH="100%"
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BORDER="0"
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CELLPADDING="0"
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CELLSPACING="0"
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><TR
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><TH
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COLSPAN="3"
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ALIGN="center"
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>Introduction to Linux: </TH
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></TR
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><TR
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><TD
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WIDTH="10%"
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ALIGN="left"
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VALIGN="bottom"
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><A
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HREF="sect_05_03.html"
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ACCESSKEY="P"
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>Prev</A
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></TD
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><TD
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WIDTH="80%"
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ALIGN="center"
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VALIGN="bottom"
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>Chapter 5. I/O redirection</TD
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><TD
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WIDTH="10%"
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ALIGN="right"
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VALIGN="bottom"
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><A
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HREF="sect_05_05.html"
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ACCESSKEY="N"
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>Next</A
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></TD
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></TR
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></TABLE
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><HR
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ALIGN="LEFT"
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WIDTH="100%"></DIV
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><DIV
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CLASS="sect1"
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><H1
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CLASS="sect1"
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><A
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NAME="sect_05_04"
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></A
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>5.4. Summary</H1
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><P
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>In this chapter we learned how commands can be linked to each other, and how input from one command can be used as output for another command.</P
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><P
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>Input/output redirection is a common task on UNIX and Linux machines. This powerful mechanism allows flexible use of the building blocks UNIX is made of.</P
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><P
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>The most commonly used redirections are <B
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CLASS="command"
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>></B
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> and <B
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CLASS="command"
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>|</B
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>. Refer to <A
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HREF="app3.html"
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>Appendix C</A
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> for an overview of redirection commands and other shell constructs.</P
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><DIV
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CLASS="table"
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><A
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NAME="AEN6552"
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></A
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><P
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><B
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>Table 5-1. New commands in chapter 5: I/O redirection</B
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></P
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><TABLE
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BORDER="1"
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CLASS="CALSTABLE"
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><THEAD
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><TR
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><TH
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ALIGN="LEFT"
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VALIGN="MIDDLE"
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>Command</TH
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><TH
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ALIGN="LEFT"
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VALIGN="MIDDLE"
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>Meaning</TH
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></TR
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></THEAD
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><TBODY
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><TR
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><TD
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ALIGN="LEFT"
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VALIGN="MIDDLE"
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><B
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CLASS="command"
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>date</B
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></TD
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><TD
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ALIGN="LEFT"
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VALIGN="MIDDLE"
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>Display time and date information.</TD
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></TR
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><TR
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><TD
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ALIGN="LEFT"
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VALIGN="MIDDLE"
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><B
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CLASS="command"
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>set</B
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></TD
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><TD
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ALIGN="LEFT"
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VALIGN="MIDDLE"
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>Configure shell options.</TD
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></TR
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><TR
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><TD
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ALIGN="LEFT"
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VALIGN="MIDDLE"
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><B
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CLASS="command"
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>sort</B
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></TD
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><TD
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ALIGN="LEFT"
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VALIGN="MIDDLE"
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>Sort lines of text.</TD
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></TR
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><TR
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><TD
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ALIGN="LEFT"
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VALIGN="MIDDLE"
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><B
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CLASS="command"
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>uniq</B
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></TD
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><TD
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ALIGN="LEFT"
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VALIGN="MIDDLE"
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>Remove duplicate lines from a sorted file.</TD
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></TR
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></TBODY
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></TABLE
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></DIV
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></DIV
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><DIV
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CLASS="NAVFOOTER"
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><HR
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ALIGN="LEFT"
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WIDTH="100%"><TABLE
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SUMMARY="Footer navigation table"
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WIDTH="100%"
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BORDER="0"
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CELLPADDING="0"
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CELLSPACING="0"
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><TR
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><TD
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WIDTH="33%"
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ALIGN="left"
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VALIGN="top"
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><A
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HREF="sect_05_03.html"
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ACCESSKEY="P"
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>Prev</A
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></TD
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><TD
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WIDTH="34%"
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ALIGN="center"
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VALIGN="top"
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><A
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HREF="index.html"
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ACCESSKEY="H"
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>Home</A
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></TD
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><TD
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WIDTH="33%"
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ALIGN="right"
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VALIGN="top"
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><A
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HREF="sect_05_05.html"
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ACCESSKEY="N"
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>Next</A
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></TD
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></TR
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><TR
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><TD
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WIDTH="33%"
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ALIGN="left"
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VALIGN="top"
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>Filters</TD
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><TD
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WIDTH="34%"
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ALIGN="center"
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VALIGN="top"
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><A
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HREF="chap_05.html"
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ACCESSKEY="U"
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>Up</A
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></TD
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><TD
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WIDTH="33%"
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ALIGN="right"
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VALIGN="top"
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>Exercises</TD
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></TR
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></TABLE
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></DIV
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></BODY
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></HTML
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> |