mirror of https://github.com/tLDP/LDP
38 lines
999 B
Bash
38 lines
999 B
Bash
#!/bin/bash
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# and list
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if [ ! -z "$1" ] && echo "Argument #1 = $1" && [ ! -z "$2" ] && \
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# ^^ ^^ ^^
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echo "Argument #2 = $2"
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then
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echo "At least 2 arguments passed to script."
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# All the chained commands return true.
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else
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echo "Fewer than 2 arguments passed to script."
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# At least one of the chained commands returns false.
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fi
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# Note that "if [ ! -z $1 ]" works, but its alleged equivalent,
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# "if [ -n $1 ]" does not.
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# However, quoting fixes this.
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# if "[ -n "$1" ]" works.
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# ^ ^ Careful!
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# It is always best to QUOTE the variables being tested.
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# This accomplishes the same thing, using "pure" if/then statements.
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if [ ! -z "$1" ]
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then
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echo "Argument #1 = $1"
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fi
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if [ ! -z "$2" ]
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then
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echo "Argument #2 = $2"
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echo "At least 2 arguments passed to script."
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else
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echo "Fewer than 2 arguments passed to script."
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fi
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# It's longer and more ponderous than using an "and list".
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exit $?
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