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in Technique[技术] by (71.8m points)

md5 - bash, md5sum behaves strange

Why is this different?

text="tralala"
echo -n $text | md5sum -

result: def7d827536761c20f449f69262ff20f

echo -n "tralala" | md5sum -

result : 7e4ef92d1472fa1a2d41b2d3c1d2b77a

what am I doing wrong?

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I suspect you mistakenly did not provide the -n (output no newline) flag to echo. See sample from my machine below:

$ echo tralala | md5sum
def7d827536761c20f449f69262ff20f  -

$ echo -n tralala | md5sum 
7e4ef92d1472fa1a2d41b2d3c1d2b77a  -

$ text="tralala"
$ echo  $text | md5sum 
def7d827536761c20f449f69262ff20f  -

$ echo -n $text | md5sum 
7e4ef92d1472fa1a2d41b2d3c1d2b77a  -

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
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