Great!Can you please explain how this command is working?
See my reply above.
May be this one from Ed Morton should be easier to understand:
Quote:
Set a counter to the number of lines you want to print
and decrement it once per line to zero, invoking the default
action of printing the current line as long as it's non-zero.
Hi guys,
I am currently facing a problem with my current script, the script basically monitor a list of process on the Unix system. If a process is down it will send a notification e-mail to me.
Currently I am facing an error when running the script grep: RE error 41: No remembered search... (2 Replies)
Hi All,
I have 2 programs running by the following names:
a_testloop.sh
testloop.sh
I read these programs names from a file and store each of them into a variable called $program.
On the completion of the above programs i should send an email.
When i use grep with ps to see if any of... (3 Replies)
Hi i want to write a script that will search a filename e.g. test06abc.txt for a string and if it contains this string then set a variable equal to something:
something like:
var1=0
search <filename> for 06
if it contains 06 then
var1=1
else
var1=0
end if
but in unix script :) (4 Replies)
Hi,
I am trying to grep a string which has two words separated by space.
I used a script to grep the string by reading the string in to a variable
command i used in the script is
echo "enter your string"
read str
grep $str <file>
it is working fine when the entered string is a single... (3 Replies)
Hi,
At first I want to please you to provide the solution with grep/sed if possible. :cool:
File looks like:
wished result:
so I want in a new file
BLUE@@RED
string from first line like:
grep "/folder_start" cs_src > tmp1
string from second line:
grep "/main" cs_src... (14 Replies)
I need to be able to search for a beginning line header, then use grep or something else to get the very next instance of a particular string, which will ALWAYS be in "Line5". What I have is some data that appears like this:
Line1
Line2
Line3
Line4
Line5
Line6
Line7
Line1
Line2
...... (4 Replies)
Hi All,
I'm using aix flavour unix where im trying for the below kind of pattern to search in all the files in a directory.
I tried with different possible combinations like
grep -ir "out.*\transaction_ctry_code" * etc....
Pattern I'm trying for :
out<any thing>country_cd
Here i... (0 Replies)
I'm in need of some kind of script that will search for a string in each logfile in a directory but we don't want to use GREP. GREP seems to use up to much of our memory causing the server to use up a lot of swap space. Our log files are bigger than 500M on a daily basis. We lately started... (8 Replies)
Lets say I have a massive directory which is filled with other directories all filled with different c++ scripts and I want a listing of all the scripts that contain the string: "this string". Is there a way to use a grep search for that? I tried:
grep -lr "this string" *
but I do not... (3 Replies)
Discussion started by: Circuits
3 Replies
LEARN ABOUT CENTOS
cam
cam(1) General Commands Manual cam(1)NAME
cam - CPU'S AUDIO MIXER for Linux
SYNOPSIS
cam [-v x,y] [--volume x,y] [-b x,y] [--bass x,y] [-t x,y] [--treble x,y] [-s x,y] [--synth x,y] [-p x,y] [--pcm x,y] [-S x,y]
[--speaker x,y] [-l x,y] [--line x,y] [-m x,y] [--mic x,y] [-c x,y] [--cd x,y] [-M x,y] [--mixer x,y] [-a x,y] [--altpcm x,y] [-r
x,y] [--reclev x,y] [-i x,y] [--igain x,y] [-o x,y] [--ogain x,y] [-l1 x,y] [--line1 x,y] [-l2 x,y] [--line2 x,y] [-l3 x,y] [--line3
x,y] [-3d 1|0] [--3dse 1|0] [-agc 1|0] [--agc 1|0] [-h] [-?] [--help] [-get] [-save] [-getfile filename] [-savefile filename]
xcam
DESCRIPTION
This is an audio mixer for Linux. You have the choice to use it with an interface or at the command line.
OPTIONS
When using the interface you can use the following keys :
LEFT ARROW
decrease the volume of the current device.
RIGHT ARROW
increase the volume of the current device.
UP ARROW
go to previous device.
DOWN ARROW
go to next device.
L locks or unlocks :
unlocked : you can control the left and right channel
separately.
lock : left and right channel are controlled together.
R turn on/off recording mode :
red lamp : recording turned on
green lamp : recording turned off
3 turn on/off 3D Stereo Enhancement (3DSE) device :
when turned on green indicator 3D will be lit at the left side of main volume handle.
A turn on/off microphone Automatic Gain Control :
when turned on green indicator AGC will be lit at the left side of microphone volume handle.
S save the settings of ALL devices in a file ($HOME/.camrc)
G loads the saved settings and restores them.
H shows the help screen.
Q/ESC exits the program and returns to shell.
NOTE: you can use upper or lower case.
When using the command line options the interface is not shown.
The following options are available :
-v, --volume x,y
Set 'volume' to x (left) and y (right)
-b, --bass x,y
Set 'bass' to x (left) and y (right)
-t, --trebble x,y
Set 'treble' to x (left) and y (right)
-s, --synth x,y
Set 'synth' to x (left) and y (right)
-p, --pcm x,y
Set 'pcm' to x (left) and y (right)
-S, --speaker x,y
Set 'speaker' to x (left) and y (right)
-l, --line x,y
Set 'line in' to x (left) and y (right)
-m, --mic x,y
Set 'microphone' to x (left) and y (right)
-c, --cd x,y
Set 'CD in' to x (left) and y (right)
-I, --imix x,y
Set 'mixer' to x (left) and y (right)
-a, --altpcm x,y
Set 'altpcm' to x (left) and y (right)
-r, --reclev x,y
Set 'record level' to x (left) and y (right)
-i, --igain x,y
Set 'input gain' to x (left) and y (right)
-o, --ogain x,y
Set 'output gain' to x (left) and y (right)
-l1, --line1 x,y
Set 'line 1' to x (left) and y (right)
-l2, --line2 x,y
Set 'line 2' to x (left) and y (right)
-l3, --line3 x,y
Set 'line 3' to x (left) and y (right)
-3d, --3dse 1|0
Set 3D Stereo Enhancement to 1 (on) or 0 (off)
-agc, --agc 1|0
Set Automatic Gain Control for microphone to 1 (on) or 0 (off)
-get restore the saved values from $HOME/.camrc
-save save the values to $HOME/.camrc
-getfile filename
restore the saved values from file 'filename'
-savefile filename
save the values to file 'filename'
-h, -?, --help
displays help
NOTE: x and y are in range from 1 to 100. Higher or lower numbers are
ignored.
BUGS
None known as yet. If you find one, please let me know.
AUTHOR
Jan 'TWP' VANDENBERGHE <jvdbergh@uia.ua.ac.be>
cam(1)