Echo - Revision history

Jimbo: bsdwiki boldface conventions in terminal sessions

2004-12-24T17:51:25Z

bsdwiki boldface conventions in terminal sessions

Jimbo at 17:50, 24 December 2004

2004-12-24T17:50:23Z

Dave at 07:09, 24 December 2004

2004-12-24T07:09:40Z

Dave at 07:08, 24 December 2004

2004-12-24T07:08:55Z

New page

[[echo]] repeats whatever has been given to it. From the manpage:
The echo utility writes any specified operands, separated by single blank
(` ') characters and followed by a newline (`\n') character, to the stan-
dard output.

The simplest way to explain it is to see it in action:
samizdata# echo "hello!"
hello!
It can also be used to add input to a file:
samizdata# echo "This is a test file" > /root/testfile
samizdata# more /root/testfile
This is a test file
samizdata#

@@ Line 5: / Line 5: @@
 The simplest way to explain it is to see it in action:
-  samizdata# echo "hello!"
+  samizdata# '''echo "hello!"'''
   hello!
 It can also be used to create and/or add input to a file:
-  samizdata# echo "This will overwrite whatever is in the file" > /root/testfile
+  samizdata# '''echo "This will overwrite whatever is in the file" > /root/testfile'''
-  samizdata# more /root/testfile
+  samizdata# '''more /root/testfile'''
   This will overwrite whatever is in the file
-  samizdata# echo "This will append to whatever is in the file" >> /root/testfile
+  samizdata# '''echo "This will append to whatever is in the file" >> /root/testfile'''
-  samizdata# more /root/testfile
+  samizdata# '''more /root/testfile'''
   This will overwrite whatever is in the file
   This will append to whatever is in the file

← Older revision		Revision as of 07:09, 24 December 2004
Line 12:		Line 12:
	This is a test file		This is a test file
	samizdata#		samizdata#
		+
		+	[[Category:System Commands]]