题目内容

Which of the following statements can be used to compare two strings? Select all answers that apply.

A. if [ $STR1 == $STR2 ] ; then echo match found ; fi
B. if [ $STR1 -eq $STR2 ] ; then echo match found ; fi
C. if [[ $STR1 = $STR2 ]] ; then echo match found ; fi
D. All of the above

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