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Wall command with nice text formatting

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# 1  
Old 08-13-2014
Wall command with nice text formatting
with using wall command, how can i have a carriage return in my broadcast message. i try to broadcast from a file, i were to use "cat myfile | wall" for broadcasting. but when the message broadcast somehow the format run away.
this the text in my file:
Code:
line 1
line 2
line 3

when broadcast
Code:
line 1                                                                         
                                                                               l
ine 2                                                                         
                                                                              li
ne 3

Moderator's Comments:
Mod Comment edit by bakunin: please use CODE-tags for files contents too. This makes it stand out better. Thank you.
Last edited by bakunin; 08-13-2014 at 06:08 AM..
# 2  
Old 08-13-2014
If you're running as root simply wall -n <filename> otherwise you could try padding the file in the manner wall expects(79 chars followed by a newline).
perl-ne 'chomp;printf "%- 79s\n",$_;' myfile | wall
# 3  
Old 08-13-2014
First off, the exact behavior of wall probably depends on the system you are on. I tried with AIX (oslevel -s says "7100-03-02-1412") and it worked once i surrounded the process substitution with double quotes to protect the output against the interpretation of the shell:

Code:
# wall $(cat /tmp/file)

Broadcast message from bakunin@system (pts/0) at 11:11:19 ... 

line1 line2 line3

but

Code:
# wall "$(cat /tmp/file)"

Broadcast message from bakunin@system (pts/0) at 11:12:04 ... 

line1
line2
line3

I hope this helps.

bakunin
# 4  
Old 08-13-2014
On many systems (including Linux, Solaris, and BSD derivatives; but not AIX or HP/UX), it would be simpler just to use:
Code:
wall myfile

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