Read the line from the last and display the one which is non-zero
Hi All,
My requirement is this. Am trying to find a one liner unix command, which will check the last line of the file for 0. If it is zero, it would pick the previous line, else it should display the last line.
Eg:
Output expected -- ijhk
Please share your ideas.
Thanks.
Last edited by rbatte1; 02-17-2015 at 08:50 AM..
Reason: Added CODE tags
I'll be reading user name and password from the person while running a shell
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The challenge here is to read the password variable without displaying on screen. Is there a way?
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echo " please enter your... (9 Replies)
Hi All,
I had a file called Input.txt, i need to group up in a single line as 1=ttt and the no of lines may vary bewteen the 1=ttt
cat Input.txt
1=ttt,2=xxxxxx, 3=4545
44545, 4=66667
7777, 5=77723
1=ttt, 2=xxxxxx, 3=34436 66
3545, 4=66666, 5=ffffff, 6=uuuuuuu
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I am using the while-loop to read a file.
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I need to have whole string up to 'new line' - (LF, 10#10, 16#A)
What I am doing wrong?
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I require help in the following:
I have the following file snmp.txt
Wed Mar 2 16:02:39 SGT 2011
Class : mmTrapBladeS
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Fri Mar 4 07:10:54 SGT 2011
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SRVXPAPI001 ERRO JUN24 07:28:34 1775
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Discussion started by: pat_pramod
3 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)