Sponsored Content
Top Forums Shell Programming and Scripting what does echo $$, $? $# mean Post 302219738 by gokulagiridaran on Wednesday 30th of July 2008 01:30:21 AM
Old 07-30-2008
Thanks a lot.!
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

echo

what is the meaning of this echo $description | wc -m` -ne "1" (0 Replies)
Discussion started by: debasis.mishra
0 Replies

2. UNIX for Dummies Questions & Answers

echo

Is there a way to get echo to make newlines without using any type of quotes? I've done a lot of searches and went into my Linux book to no avail. I'm trying to write five separate lines to a file. I can get echo to accept all five lines like this echo \ \this is line 1\ \this is line 2\ >... (6 Replies)
Discussion started by: Trekker182
6 Replies

3. Shell Programming and Scripting

Difference between using "echo" builtin and /bin/echo

So in my shell i execute: { while true; do echo string; sleep 1; done } | read line This waits one second and returns. But { while true; do /bin/echo string; sleep 1; done } | read line continues to run, and doesn't stop until i kill it explicitly. I have tried this in bash as well as zsh,... (2 Replies)
Discussion started by: ulidtko
2 Replies

4. Shell Programming and Scripting

echo !.

can someone tell me what does this code do? echo !. (2 Replies)
Discussion started by: ryandegreat25
2 Replies

5. UNIX for Dummies Questions & Answers

How to correctly use an echo inside an echo?

Bit of a weird one i suppose, i want to use an echo inside an echo... For example... i have a script that i want to use to take users input and create another script. Inside this script it creates it also needs to use echos... echo "echo "hello"" >$file echo "echo "goodbye"" >$file ... (3 Replies)
Discussion started by: mokachoka
3 Replies

6. Shell Programming and Scripting

Help with echo

Hi Guys, I need to print a value in the same line , But when we use the echo instead the loops (while), the value goes to the next line.. Can you help me in this.. Thanks For your help in advance. (6 Replies)
Discussion started by: mac4rfree
6 Replies

7. Shell Programming and Scripting

With that logic this echoes "echo". Question about echo!

echo `echo ` doesn't echoes anything. And it's logic. But echo `echo `echo ` ` does echoes "echo". What's the logic of it? the `echo `echo ` inside of the whole (first) echo, echoes nothing, so the first echo have to echo nothing but echoes "echo" (too much echoing :P):o (2 Replies)
Discussion started by: hakermania
2 Replies

8. Shell Programming and Scripting

tcsh - understanding difference between "echo string" and "echo string > /dev/stdout"

I came across and unexpected behavior with redirections in tcsh. I know, csh is not best for redirections, but I'd like to understand what is happening here. I have following script (called out_to_streams.csh): #!/bin/tcsh -f echo Redirected to STDOUT > /dev/stdout echo Redirected to... (2 Replies)
Discussion started by: marcink
2 Replies

9. UNIX for Dummies Questions & Answers

echo

Hello, I'm working with ksh. I was working with the echo command That is echo "Today is $date" which would show for example Toady is 7/12/12 which was fine however, know I only recieve the first part of the echo without the date. Today is Could I have edited the echo... (9 Replies)
Discussion started by: JD_Sal
9 Replies

10. UNIX for Dummies Questions & Answers

Difference between echo `ls -l` and echo "`ls -l`" ?

Hi guys, Been messing around with shell programming for a couple of days and I found something that was pretty odd in the behavior of the echo command. Below is an example-: When I type the following in my /home directory from my lxterminal in Debian-: echo "`ls -l`" I get the... (2 Replies)
Discussion started by: sreyan32
2 Replies
roarvio(7)						System Manager's Manual: RoarAuido						roarvio(7)

NAME
libroar - RoarAudio sound library roarvio - RoarAudio virtual IO layer SYNOPSIS
#include <roaraudio.h> struct roar_vio_calls; DESCRIPTION
The RoarAudio VIO interface is RoarAudio's IO abstraction layer. It provides basic IO functions such as read and write independing on the underlaying IO. For Example can you open a plain or a gziped file via the VIO layer. After a successful open both objects behave the same, libroar takes care about the compression in the gzip case. TUTORIALS
Tutorials can be found in roartutvio(7). IMPORTANT FUNCTIONS
There are several important functions. This is a small list of the most important ones. Opening roar_vio_open_file(3), roar_vio_open_fh(3), roar_vio_open_stdio(3), roar_vio_open_dstr(3), roar_vio_open_proto(3). While there are a lot functions important for opening files the most important one is roar_vio_open_dstr(3). It opens a stream based on URLs that can point to local files or files on remote machines. It also can handle compression and encryption. Closing roar_vio_close(3), roar_vio_shutdown(3) Reading and writing roar_vio_read(3), roar_vio_write(3) Seeking and positioning roar_vio_lseek(3) Non-Blocking and Asyncron IO roar_vio_nonblock(3), roar_vio_sync(3), roar_vio_select(3) Networking and Sockets roar_vio_accept(3) String handling roar_vio_printf(3) BUGS
A lot... SEE ALSO
roar-config(1), roartypes(1), roartutvio(7), RoarAudio(7). RoarAudio May 2011 roarvio(7)
All times are GMT -4. The time now is 10:28 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy