In Bash (or other shells) how can I print an environment variable which has a multi-line value?
在Bash（或其他shell）中，如何打印具有多行值的环境变量？
text='line1
line2'
I know a simple usual echo $text won't work out of the box. Would some $IFS tweak help?
我知道一个简单的通常echo $ text不会开箱即用。一些$ IFS调整会有帮助吗？
My current workaround is something like ruby -e 'print ENV["text"]'. Can this be done in pure shell? I was wondering if env command would take an unresolved var name but it does not seem to.
我目前的解决方法就像ruby -e'print ENV [“text”]'。这可以用纯壳完成吗？我想知道env命令是否会采用未解析的var名称，但似乎不是。
2 个解决方案
#1
33
Same solution as always.
和往常一样的解决方案
echo "$text"
#2
3
export TEST="A\nB\nC"
echo $TEST
gives output:
给出输出：
A\nB\nC
but:
但：
echo -e $TEST
A
B
C
So, the answer seems to be the '-e' parameter to echo, assuming that I understand your question correctly.
所以，答案似乎是回声的'-e'参数，假设我正确理解你的问题。
#1
33
Same solution as always.
和往常一样的解决方案
echo "$text"
#2
3
export TEST="A\nB\nC"
echo $TEST
gives output:
给出输出：
A\nB\nC
but:
但：
echo -e $TEST
A
B
C
So, the answer seems to be the '-e' parameter to echo, assuming that I understand your question correctly.
所以，答案似乎是回声的'-e'参数，假设我正确理解你的问题。