I have googled and spent few hours to understand about AWK usage... But still not very much clear....
Upto my understanding 'AWK' deals with files... It reads the file takes it as a input process it and gives output or writes the output to an another file...
>> Please correct me if I am wrong OR make me more clear and precise
When I tried executing below command in the command prompt
Code:
awk' '{print$1}' SNA_DB_UPG.list
It does not take this as a command and further seeking for a terminator...
Further I felt better to give some file to print the output as below:
Code:
awk' '{print$1}' SNA_DB_UPG.list >> test
But Alas no luck..
Please share few more examples... I gone through with older posts as well.. But nothing clicked me..
Hi
I have 2 75GB SCSI hard drives and 2 250GB SATA hard drives which are using RAID Level 1 respectively. I wana have both FTP and Apache installed on them as services. I'm wondering what's the best partitioning schem? I wana use FC3 as my OS, so, I thought I can use the 75GB hard drive as the /... (0 Replies)
About associative nature of awk arrays i'm still confused, not able to understand yet how array element can be accessed based on a string, I got one example at gawk manual to illustrate associative nature of awk arrays, it goes here:
Codeawk '
# Print list of word frequencies
{
for (i = 1;... (3 Replies)
i am not able to understand the following code for awk:
$awk -F"|" '{ kount++}
>END { for (desig in kount)
> print desig,kount }' emp.list
the input file i.e. emp.list is ::
3432| p.k.agrwal |g.m |sales
4566|g.l.sharma |director|production
3433|r shah | g.m | production... (1 Reply)
I learn using RS in awk to extract portion of file in this forum which is wonderful solution to the problem. However, I don't understand how exactly it operates.
I don't quite understand the mechanism behind how searching for /DATA2/ can result in extracting the whole section under "DATA2"
... (3 Replies)
Hi Guys,
Can someone please explain this code to me. I could figure out it's adding and comparing two fields but I am not sure which ones.
sort -t"|" -k3.1 /tmp/mpcashqc.xtr| awk -F"|" '{CHECKAMT+=$3;BATCHTOT=$4;\
items++}END{for(i in CHECKAMT) if (CHECKAMT!=BATCHTOT)... (6 Replies)
Hello,
I have the following script :
BEGIN {
print "1 ***";
split("abc",T,"");
T="e";
T="z";
T="y";
for (i in T) printf("%i:%s ",i,T); print "";
for (i=1; i<=length(T); i++) printf(T); print ""
print "2 ***";
asort(T,U);
for (i in U) printf("%i:%s ",i,U); ... (3 Replies)
While working on awk programming, i found that it doesn't understand 'read' statement. Then what's the use of 'continue' and 'break' statement in awk.
For ex:
awk '{k=1; while (k<10) {print $0; k++}}' emp.lst
Now, please say if I want to put the logic that after priting 1 line, it will ask for... (13 Replies)
Hi
below is the samll awk script which i am not able to understand properly.
here a bit confusion in 2nd line for me
1. why *\ is not used before . in second line as it was used in first line *\$*\. */
2. why always \ is used in every first line
3. is there any specific meaning... (9 Replies)
Hey guys, my first post here.
I'm trying to use awk to copy all matching paragraphs from one file
The file looks like this :
Test Case Number 990990003099
Card Type CCCC
Transaction Type Sale
Entry Mode Keyed
Account Number 4099562299219923
Transaction Amount 78.88
Description lorem... (2 Replies)
Help understand awk command
This command converts the column values to rows.
Command:
awk -s1=" " '{S=S?S OFS s1 $0 s1:s1 $0 s1} END{print S}' OFS=, Input_file
Example:
1
2
3
is converted to:
1, 2, 3
Can anyone please help me understand this command?
Please use code tags when... (1 Reply)
Discussion started by: mohan44
1 Replies
LEARN ABOUT DEBIAN
irsend
IRSEND(1) User Commands IRSEND(1)NAME
irsend - basic LIRC program to send infra-red commands
SYNOPSIS
irsend [options] DIRECTIVE REMOTE CODE [CODE...]
DESCRIPTION
Asks the lircd daemon to send one or more CIR (Consumer Infra-Red) commands. This is intended for remote control of electronic devices such
as TV boxes, HiFi sets, etc.
DIRECTIVE can be:
SEND_ONCE - send CODE [CODE ...] once
SEND_START - start repeating CODE
SEND_STOP - stop repeating CODE
LIST - list configured remote items
SET_TRANSMITTERS - set transmitters NUM [NUM ...]
SIMULATE - simulate IR event
REMOTE is the name of a remote, as described in the lircd configuration file.
CODE is the name of a remote control key of REMOTE, as it appears in the lircd configuration file.
NUM is the transmitter number of the hardware device.
For the LIST DIRECTIVE, REMOTE and/or CODE can be empty:
LIST "" "" - list all configured remote names
LIST REMOTE "" - list all codes of REMOTE
LIST REMOTE CODE - list only CODE of REMOTE
The SIMULATE command only works if it has been explicitly enabled in lircd.
-h --help
display usage summary
-v --version
display version
-d --device
use given lircd socket [/var/run/lirc/lircd]
-a --address=host[:port]
connect to lircd at this address
-# --count=n
send command n times
EXAMPLES
irsend LIST DenonTuner ""
irsend SEND_ONCE DenonTuner PROG-SCAN
irsend SEND_ONCE OnkyoAmpli VOL-UP VOL-UP VOL-UP VOL-UP
irsend SEND_START OnkyoAmpli VOL-DOWN ; sleep 3
irsend SEND_STOP OnkyoAmpli VOL-DOWN
irsend SET_TRANSMITTERS 1
irsend SET_TRANSMITTERS 1 3 4
irsend SIMULATE "0000000000000476 00 OK TECHNISAT_ST3004S"
FILES
/etc/lirc/lircd.conf
Default lircd configuration file. It should contain all the remotes, their infra-red codes and the corresponding timing and wave-
form details.
DIAGNOSTICS
If lircd is not running (or /var/run/lirc/lircd lacks write permissions) irsend aborts with the following diagnostics:
"irsend: could not connect to socket"
"irsend: Connection refused" (or "Permission denied").
SEE ALSO
The documentation for lirc is maintained as html pages. They are located under html/ in the documentation directory.
lircd(8), mode2(1), smode2(1), xmode2(1), irrecord(1), irw(1), http://www.lirc.org.
irsend 0.9.0-pre1 October 2010 IRSEND(1)
03-15-2012
