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Concatenate the string with the newline character

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# 1  
Old 09-16-2008
Concatenate the string with the newline character
Hi , i want to Concatenate a string and use the following code


Code:
str="i"
str="$str am \n"
str="$str a \n"
str="$str boy \n"
echo $str

I want to ouput this
Code:
i 
am 
a 
boy

However it outputs

Code:
i am \n a \n boy \n

How can I Concatenate the string with the newline character?
# 2  
Old 09-16-2008
Quote:
Originally Posted by youareapkman
Hi , i want to Concatenate a string and use the following code


Code:
str="i"
str="$str am \n"
str="$str a \n"
str="$str boy \n"
echo $str

I want to ouput this
Code:
i 
am 
a 
boy

However it outputs

Code:
i am \n a \n boy \n

How can I Concatenate the string with the newline character?
Would this do
Code:
str="i
am
a
boy"
echo "$str"

# 3  
Old 09-16-2008
Or even

Code:
str="i
"
str="$str am
"
str="$str a
"
str="$str boy
"
echo "$str"

If your echo understands \n to be a newline, the end result will work even if the string contains literal \n sequences. In some shells, you use something like echo -e to activate backslash interpretation.
# 4  
Old 09-16-2008
Hammer & Screwdriver Another approach
Code:
> echo "I am a boy" | tr " " "\n"
I
am
a
boy

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