Bash - disappearing values while concatenating strings

Question

I am trying to insert into the file values which I get from another file (xml) and I want them to be in one row. I checked variables - separately they are but once I try to concatenate them somehow, something goes wrong and I get only parts of the prior strings.

My code looks as it follows:

echo $usd
echo $gbp
all=$usd$space$gbp
echo $all

The output looks like this:

3,6525
5,5407
 5,5407

Does anybody know what am I doing wrong? Or what can I do to restore my data?

The concatenation looks okay. It must be a problem with your data. You should show more code. — mvidovic
– mvidovic, Commented Apr 9, 2016 at 19:33
Your data contains carriage return characters \r -- verify with echo "$usd" | od -c -- run dos2unix on your input files. — glenn jackman
– glenn jackman, Commented Apr 9, 2016 at 19:43

Walter A · Accepted Answer · 2016-04-09 19:47:15Z

3

You have a CR in your variable. I can reproduce your case with the vars

usd="3,6525^M"
gbp="5,5407^M"
space=" "

(I entered ^M in vi with CTRL-V CTRL-M, it is the \r character) When you do not want to clean the xml, usd and gbp, you can use

all=${usd%$'\r'}${space}${gbp%$'\r'}

answered Apr 9, 2016 at 19:47

Walter A

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1 Comment

Todd Gillette Over a year ago

Or run dos2unix on the source file to remove the bad characters. That fixed it for my case.

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