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Top Forums UNIX for Beginners Questions & Answers Output to file print as single line, not separate line Post 302985882 by Don Cragun on Wednesday 16th of November 2016 04:08:05 PM
Old 11-16-2016
Quote:
Originally Posted by cogiz
example of problem:

when I echo "$e" >> /home/cogiz/file.txt

result prints to file as:
Code:
AA
BB
CC

I need it to save to file as this:
Code:
AA BB CC

I know it's probably something really simple but any help would be greatly appreciated.
Thank You.
Cogiz
Hi cogiz,
To get the results shown above (i.e., changing <newline>s between words in the input to <space>s between words in the output, but keeping a trailing <newline> at the end of the output), e had to be set with something logically equivalent to:
e="AA
BB
CC"
Note that this variable contains two embedded <newline>s. Therefore, the suggestions provided by rdrtx1 and balajesuri will NOT work. The quoted argument ("$e") keeps those embedded <newline> visible in the output from those suggestions. Note also that these non-working suggestions are a direct result of your failure to use CODE tags to make clear what input you had and what output you wanted.

The suggestion RavinderSingh13 provided should do exactly what you requested. The unquote argument ($e) passed to echo causes the shell to split the expansion of that variable into three operands, each of which will be printed as a string with a <space> separating the fields in the output and a single <newline> will be printed at the end.
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IRSEND(1)								FSF								 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 0.8.7pre1 May 2010 IRSEND(1)
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