Linux Bash Arithmetic Expressions Question:
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Which command concatenate the specified argument into a single command, then execute the command?
a) fc
b) eval
c) exec
d) getopts

Linux Bash Arithmetic Expressions Interview Question
Linux Bash Arithmetic Expressions Interview Question

Answer:

b) eval

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Which command can create environment variable?
a) export
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d) none of the mentioned		The command 'hash':
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d) all of the mentioned