Strange behavior when parsing result from curl + awk - bash

Question

Using curl on ubuntu I am trying to fetch the Jenkins version inspired by:
https://wiki.jenkins.io/display/JENKINS/Remote+access+API
In a bash script I do:
VERSION=$(curl -k -i -X GET --insecure --silent --header \"Authorization: Bearer $TOKEN \" $URL | grep -Fi X-Jenkins: | awk '{print $2}')
echo "__A__[${VERSION}]__B__"
But when I run the script I get:
]__B__2.89.2
So for some reason the prefix: __A__[ gets swallowed and the suffix gets turned into a prefix.
I have also tried to trim the output with:
VERSION=$(curl -k -i -X GET --insecure --silent --header \"Authorization: Bearer $TOKEN \" $URL | grep -Fi X-Jenkins: | awk '{print $2}' | sed -e 's/^[ \t]*//')
But it gives the same result.
As suggested below I have also tried with:
echo '__A__['"${VERSION}"']__B__'
But still gives the same/wrong result.
A few other things I have tried (giving the same result)
Same/wrong output
VERSION=$(curl -k -i -X GET --insecure --silent --header \"Authorization: Bearer $TOKEN \" $URL | grep -i X-Jenkins: | awk '{print $2}')
echo '__A__['"${VERSION}"']__B__'
Same/wrong output
VERSION=$(curl -k -i -X GET --insecure --silent --header \"Authorization: Bearer $TOKEN \" $URL | grep X-Jenkins: | awk '{print $2}')
echo '__A__['"${VERSION}"']__B__'
Based on below suggestion I have now tried:
echo $VERSION|od -ax
Which gives:
0000000 2 . 8 9 . 2 cr nl
2e32 3938 322e 0a0d
0000010
If I compare that with:
VERSION_TEMP="2.89.2"
echo $VERSION_TEMP|od -ax
I get:
0000000 2 . 8 9 . 2 nl
2e32 3938 322e 000a
0000007
So looks like its the cr in the VERSION var that is causing the issue (not sure how that explains the whole reversing of prefix/suffix as described above).
SOLVED: Based on input from Romeo I now got it to work with adding |tr -d '\r' :
VERSION=$(curl -k -i -X GET --insecure --silent --header \"Authorization: Bearer $TOKEN \" $URL | grep X-Jenkins: | awk '{print $2}'|tr -d '\r')

Answer 1

Apparently the output contains a DOS carriage return.
Try adding tr -d '\015':
version=$(curl -k -i -X GET --insecure --silent --header \"Authorization: Bearer $TOKEN \" "$URL" |
tr -d '\015' |
awk 'tolower($0) !~ /x-jenkins:/{print $2}')
echo "__A__[$version]__B__"
Uppercase variable names are reserved for system use, so I changed yours to lower case, too, and removed the useless grep.