Linux and UNIX Man Pages

Linux & Unix Commands - Search Man Pages

snd_ctl_replace(9) [centos man page]

SND_CTL_REPLACE(9)						 Control/Mixer API						SND_CTL_REPLACE(9)

NAME
snd_ctl_replace - replace the control instance of the card SYNOPSIS
int snd_ctl_replace(struct snd_card * card, struct snd_kcontrol * kcontrol, bool add_on_replace); ARGUMENTS
card the card instance kcontrol the control instance to replace add_on_replace add the control if not already added DESCRIPTION
Replaces the given control. If the given control does not exist and the add_on_replace flag is set, the control is added. If the control exists, it is destroyed first. It frees automatically the control which cannot be added or replaced. RETURN
Zero if successful, or a negative error code on failure. COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 SND_CTL_REPLACE(9)

Check Out this Related Man Page

FM(1)							      General Commands Manual							     FM(1)

NAME
fm - control frequency, volume, mute/unmute of FM radio card SYNOPSIS
fm [ -h ] [ -o ] [ -q ] [ -d device ] [ -t tuner ] [ -T none | forever | time ] on | off | + | - | freq [ volume ] DESCRIPTION
fm is a program to control the frequency, volume, and mute/unmute state of an FM radio card, using the video4linux interface introduced in 2.1.x series Linux kernels. OPTIONS -h Print a usage message to standard output, and exit. -o Ignore frequency range limits of card. Use if you suspect that the card supports a wider frequency range than its driver believes. -q Quiet mode. Keeps information on station and volume from being printed on standard output. -d device Sets device as the device to tune. The default is /dev/radio0. -t tuner Sets tuner as the tuner on the selected device to adjust. The default is tuner 0. Most radio devices have only a single tuner. -T none | forever | time After tuning, sleep for the time specified or forever. Time is specified in seconds by default. A suffix of m indicates minutes, h indicates hours, or d indicates days. The -T option is useful with radio card drivers that only maintain the tuner settings while the tuner's file descriptor remains open. Try using this option if running fm ordinarily produces only a single "pop" from your speakers. freq Frequency to tune the radio to, in MHz. For instance, 88.9 specifies a frequency of 88.9 MHz. AM tuner values are also specified in MHz; for instance, 530 kHz would be specified as .530. on Turn the radio on (unmute). off Turn the radio off (mute). volume Specify the desired volume, in percent. Not all radio devices support volume control. + Increase the current volume. - Decrease the current volume. CONFIGURATION
fm reads $HOME/.fmrc, if it exists, to obtain default settings. Each line may take one of the following forms: VOL percent Specifies default volume (default: 12.5%). INCR percent Volume increment used for + and - options (default: 10%). TIME Default sleep time (default: none). All other lines are ignored. SEE ALSO
Additional documentation: /usr/share/doc/fmtools/README The fmtools homepage: http://benpfaff.org/fmtools AUTHORS
Russell Kroll <rkroll@exploits.org>, now maintained by Ben Pfaff <blp@cs.stanford.edu>. Sleep time feature contributed by Dave Ulrick <d- ulrick@insightbb.com>. This manpage written by Ben Pfaff. fm 1.0.2 FM(1)
Man Page

15 More Discussions You Might Find Interesting

1. Fedora

Is UNIX an open source OS ?

Hi everyone, I know the following questions are noobish questions but I am asking them because I am confused about the basics of history behind UNIX and LINUX. Ok onto business, my questions are-: Was/Is UNIX ever an open source operating system ? If UNIX was... (21 Replies)
Discussion started by: sreyan32
21 Replies

2. UNIX for Beginners Questions & Answers

Weird 'find' results

Hello and thanks in advance for any help anyone can offer me I'm trying to learn the find command and thought I was understanding it... Apparently I was wrong. I was doing compound searches and I started getting weird results with the -size test. I was trying to do a search on a 1G file owned by... (14 Replies)
Discussion started by: bodisha
14 Replies

3. UNIX for Beginners Questions & Answers

Set hard block limit for user using quota

hi all, i have installed quota on my centos 7 machine and its what im after (setting size limit on users, so they cant fill the hard drive) i want to now make this part of my create user script for my sftp server so i want to do a echo and a read command so i capture the limit they enter... (0 Replies)
Discussion started by: robertkwild
0 Replies

4. UNIX for Beginners Questions & Answers

Best performance UNIX just for HOST Virtualization?

Hi everybody, Which Unix base OS have best performance for HOST virtualization? I tested SmartOS but it needs another OS to connect remotely! Thanks in advance. (11 Replies)
Discussion started by: mbzadegan
11 Replies

5. UNIX for Beginners Questions & Answers

How to increment version inside a file?

Hi All, I need to write a shell script which opens a file and increments the version(text) within the file every time the script runs. For example: $ cat docker_file.yml version: '3.1' services: ui: image: repo-srv.dev.io:5000/facebook/ui:0.0.2-QA1 $ So, I would like... (6 Replies)
Discussion started by: akshayupadhayay
6 Replies

6. Programming

DB2 convert digits to binary format

Dear Team We use DB2 v10.5 and using DBArtisan tool Can someone please guide how to convert digits to binary numbers using db2 feature. Ex> for number 9 , binary should be 1001 ( 8+1) Any help appreciated. Thanks (2 Replies)
Discussion started by: Perlbaby
2 Replies

7. UNIX for Advanced & Expert Users

Tar Command

hi folks, how to using tar with exclude directory and compress it using tar.Z i only know how to exclude dir only with this command below: tar -cvf /varios/restore/test.tar -X excludefile.txt /jfma/test1/ how to compress it using 1 command? Thanx Please use CODE tags as... (6 Replies)
Discussion started by: only
6 Replies

8. UNIX for Advanced & Expert Users

CentOS7 restoring file capabilities

Quite an obscure question I think. We have a rebuild process for remote sites that allows us to PXE rebuild a till (actually a PC with a touch screen and various fancy bits) running CentOS. The current CentOS5 tills work just fine with a tar image restore and some personalisation. Sadly,... (4 Replies)
Discussion started by: rbatte1
4 Replies

9. Docker

Docker learning Phase-I

Hello All, I had recently learnt a bit of Docker(which provides containerization process). Here are some of my learning points from it. Let us start first with very basic question: What is Docker: Docker is a platform for sysadmins and developers to DEPLOY, DEVELOP and RUN applications ... (7 Replies)
Discussion started by: RavinderSingh13
7 Replies

10. UNIX for Advanced & Expert Users

Shopt -s histappend

What is the point of this? Whenever I close my shell it appends to the history file without adding this. I have never seen it overwrite my history file. # When the shell exits, append to the history file instead of overwriting it shopt -s histappend (3 Replies)
Discussion started by: cokedude
3 Replies

11. UNIX for Beginners Questions & Answers

Unsure why access time on a directory change isn't changing

Hello... And thanks in advance for any help anyone can offer me I was trying to work out the differences between displaying modify, access, and change times with the 'ls' command. Everything seems in order when I look at files, but the access time on a directory doesn't seem to change when I... (4 Replies)
Discussion started by: bodisha
4 Replies

12. UNIX for Beginners Questions & Answers

CentOS 6 ran out of space, need to reclaim it

Hello everyone, I am having an issue here with CentOS release 6.6 (Final) that shows all of the space used up, but I can't tell where the space went. Seemingly I am using up 100%, according to df -h Filesystem Size Used Avail Use% Mounted on... (27 Replies)
Discussion started by: DannyBoyCentOS
27 Replies

13. Shell Programming and Scripting

Controlling user input

I'm trying to use a bash script for a psych experiment that involves listening to sound files and responding. If I have something like the code below, how can I make sure that a key press is assigned to RESPONSE only after the second echo statement? for i in 1 2 3; do echo "Ready?" sleep 2 ... (10 Replies)
Discussion started by: darwin_886
10 Replies

14. Shell Programming and Scripting

[TIP] Processing YAML files with yq

After the success of the jq - tool for parsing and manipulating JSON-Data someone wrote a tool called yq, which aims to be the same for YAML, what jq is for JSON. Seems to work fine. I'll definitely give it a chance in future. Example YAML-File: --- !ruby/object:Puppet::Node::Facts ... (1 Reply)
Discussion started by: stomp
1 Replies

15. What is on Your Mind?

Please Welcome Dave Munro to the Moderator Team!

Dear All, I am very pleased to announce that Dave Munro (gull04) is joining the Moderation Team, after being a very valuable member of UNIX.com for 15+ years. Dave is an IT Consultant with 30 years of experience this year, has worked in many of the industry vertical market segments and has... (6 Replies)
Discussion started by: Neo
6 Replies

Featured Tech Videos