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Full Discussion: Issue with writing a pipe
Top Forums Shell Programming and Scripting Issue with writing a pipe Post 303045158 by sea on Thursday 12th of March 2020 08:53:22 PM
Old 03-12-2020
Issue with writing a pipe

Heyas

I dont get why I only get the first item of multiple passed strings.

Code:
	printe() { # STR1 STR2 STR3
	# Simply prints the strings as passed
	# It requires 3 strings to use the center
		case "$1" in
		"--"|"-")
				# Read pipe, expect one line
				read LEFT CENTER RIGHT
				set "$LEFT" "$CENTER" "$RIGHT"
				echo " --------------"
				echo "$LEFT $CENTER $RIGHT :: ${@}"
				;;
		esac
	}
	${ECHO:-\echo} This is piped | printe -

Output I get:
Code:
 --------------
This   :: This

Output I expected:
Code:
This is piped :: This is piped

Though, 'everything' after the :: is just from my 'verification', and that failed, which increased my confusion.

Any ideas or suggestions?
Thank you


EDIT -----------------------------

Errr... ok I need to rephrase this.... hold on

Just figured, it'll work just fine with echo!
But, I have to use printf because there are systems not having echo - at least that's what my memory tells me from when I last tested these things.

I'll try to figure it out now, but if you would happend to have a solution at hand, I'd be happy to read it Smilie

tia

--- Post updated at 03:53 ---

LOL ok, was a simple thing...
Just regular syntax fixed it Smilie

/solved

But, what EXACTLY does printf %q str do?
Helps says: That it can be reused as shell input..
I dont get it - because I can also use %s with the same result (in my situational case here right now).

Does that just mean that, probable codes would be preserved?

Last edited by sea; 03-12-2020 at 10:39 PM..
 

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