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diff --git a/help/en/bash/echo.html b/help/en/bash/echo.html new file mode 100644 index 0000000..9b012bb --- /dev/null +++ b/help/en/bash/echo.html @@ -0,0 +1,121 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html> +<head> +<link rel="STYLESHEET" href="../term_tools/main.css" type="text/css"> +<title>echo MAN Page</title> +<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> +</head><body><!-- #BeginLibraryItem "/Library/head_bash.lbi" --><div id="nav-menu"> +<ul> +<li><a class="rl" href="../term_tools/index.html"><img src="../term_tools/images/ss64.gif" title="Home" alt="Home"></a></li> +<li><a class="rl" href="../term_tools/bash"><img src="../term_tools/images/bash-l.gif" title="bash" alt="bash"></a></li> +<li><!-- Search Google --> +<form action="http://www.google.com/search" method="get" style="margin:0px;padding:0px;"> +<div align="right"> +<input name="q" type="text" class="body" size="25"> +<input class="submit" type="submit" value="Search"> +<input type="hidden" name="q" value="site:ss64.com/bash/"> +</div> +</form></li> +<li><a class="rr" href="syntax.html"><img src="../term_tools/images/syntax-r.gif" title="Bash Syntax"></a></li> +</ul> +</div> <!-- #EndLibraryItem --><h1> echo</h1> +<p>Display message on screen, writes each given STRING to standard +output, with a space between each and a newline after the last one.</p> +<pre>Syntax + echo [<em>options</em>]... [<em>string</em>]... + +Options + + -n + Do not output the trailing newline. + + -E + Disable the interpretation of the following backslash-escaped characters + + -e + Enable interpretation of the following backslash-escaped + characters in each STRING: + + \a alert (bell) + + \b backspace + + \c suppress trailing newline + + \e escape <br> <br> \f form feed + + \n new line + + \r carriage return + + \t horizontal tab + + \v vertical tab + + \\ backslash + + \<i>NNN</i> + the character whose ASCII code is NNN (octal); if NNN is not + a valid octal number, it is printed literally. + + \x<i>nnn</i><br> the character whose ASCII code is the hexadecimal value <br> nnn (one to three digits)</pre> +<p>echo is a BASH built-in command</p> +<p><b>Examples</b></p> +<p>Echo can also display in color by using Escape sequences for foreground (30..37) and background (40..47) colours.</p> +<p class="code">$ COL_BLUE="\x1b[34;01m"<br> +$ COL_RESET="\x1b[39;49;00m"<br> +$ echo -e $COL_BLUE"Important Message: "$COL_RESET"This is a message"</p> +<p>Here is a shell script to display all the color combinations: </p> +<pre> #!/bin/bash + # + echo ---Bg---40---41---42---43---44---45---46---47 + for i in {30..37} # foreground + do + echo -n -e fg$i- + for j in {40..47} # background + do + echo -n -e '\E['$i';'$j'm SS64' + tput sgr0 # Reset text attributes to normal without clear + done + echo # newline + done + + echo -- Clear BG -- + for n in {30..37} # foreground + do + echo -e fg$n '\E['$n';'01'm SS64' + tput sgr0 # Reset text attributes to normal without clear + done</pre> +<p><em>"The only thing that helps me pass the time away; is knowing I'll be back at Echo Beach some day" - Martha and the Muffins</em><b></b><b><br> + <br> + Related</b>:<br> + <br> + <a href="head.html">head</a> - Output the first part of file(s)<a href="less.html"><br> + less</a> - Display output one screen at a time<br> + <a href="more.html">more</a> - Display output one screen at a time <br> + pg - Display one page at a time<br> + <a href="tee.html">tee</a> - Redirect output to multiple files <br> +Equivalent Windows command: <a href="echo.html">ECHO</a> - Display message on screen</p> +<!-- #BeginLibraryItem "/Library/foot_bash.lbi" --><p align="left"><script type="text/javascript"><!-- +google_ad_client = "pub-6140977852749469"; +google_ad_width = 300; +google_ad_height = 250; +google_ad_format = "300x250_as"; +google_ad_type = "text_image"; +google_ad_channel ="1984328893"; +google_color_border = "CCCCCC"; +google_color_bg = "CCCCCC"; +google_color_link = "000000"; +google_color_text = "333333"; +google_color_url = "0000FF"; +//--></script> +<script type="text/javascript" + src="http://pagead2.googlesyndication.com/pagead/show_ads.js"> +</script><br> +</p> +<div align="center"><hr size="1"> + <p id="top"><a href="#"><img src="../term_tools/images/top-4.gif" width="47" height="53" border="0" alt="Back to the Top" title="Back to the Top"></a></p> + <p class="tagline">© Copyright <a href="http://ss64.com/">SS64.com</a> 1999-2010<br> +Some rights reserved<br> +</p> +</div><!-- #EndLibraryItem --></body> +</html> |