I have a very large log file and it speed up scrolling.
so I want to tail last 500 lies and see using vi editor.
tail -n 500 large_file | small_file | vi {};
this won't work.
I'm very novice on Unix.
TIA. (2 Replies)
Dear All,
I have two files both containing 10 Million records each separated by comma(csv fmt).
One file is input.txt other is status.txt.
Input.txt-> contains fields with one unique id field (primary key we can say)
Status.txt -> contains two fields only:1. unique id and 2. status
... (8 Replies)
these are numeric ids..
222932017099186177
222932014385467392
222932017371820032
222932017409556480
I have text file having 300 millions of line as shown above. I want to find duplicates from this file. Please suggest the quicker way..
sort | uniq -d will... (3 Replies)
Hi
this is my SQL script
$ wc -l insert_into_customers.sql
85601 insert_into_customers.sqlI wish to cut this file into 9 files each 10000 lines (the last one less)
$ wc -l insert_into_customers_00*.sql
10000 insert_into_customers_001.sql
10000 insert_into_customers_002.sql
... (1 Reply)
Hi
My 30 million line file has a header
chr start end strand ref_context repeat_masked s1_smpl_context s1_c_count s1_ct_count s1_non_ct_count s1_m% s1_score s1_snp s1_indels s2_smpl_context s2_c_count s2_ct_count s2_non_ct_count s2_m% s2_score s2_snp s2_indels ... (2 Replies)
Hi,
I want to read a live log file line by line and considering those line which are newly added to file
Below code I am using, which read line but as soon as it read new line from log file its starts processing from very first line of file.
tail -F /logs/COMMON-ERROR.log | while read... (11 Replies)
Hello,
I need a program that read a file line by line and prints out lines 1, 2 & 3 after an empty line... An example of entries in the file would be:
SRVXPAPI001 ERRO JUN24 07:28:34 1775
REASON= 0000, PROCID= #E506 #1065: TPCIPPR, INDEX= 003F
... (8 Replies)
I have a file where every line includes four expressions with a caret in the middle (plus some other "words" or fields, always separated by spaces). I would like to extract from this file, all those lines such that each of the four expressions containing a caret appears in at least four different... (9 Replies)
First month learning about the Linux terminal and it has been a challenge yet fun so far. We're learning by using a gameshell. I'm trying to display a certain line ( only allowed 1 command ) from a file only using the head or tail. I'm pretty about this answer:
head -23 history.txt | tail -1... (1 Reply)
Discussion started by: forzatekk
1 Replies
LEARN ABOUT LINUX
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)