mirror of https://github.com/tLDP/LDP
51 lines
1.0 KiB
Bash
51 lines
1.0 KiB
Bash
#!/bin/bash
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# arglist.sh
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# Invoke this script with several arguments, such as "one two three" ...
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E_BADARGS=85
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if [ ! -n "$1" ]
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then
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echo "Usage: `basename $0` argument1 argument2 etc."
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exit $E_BADARGS
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fi
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echo
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index=1 # Initialize count.
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echo "Listing args with \"\$*\":"
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for arg in "$*" # Doesn't work properly if "$*" isn't quoted.
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do
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echo "Arg #$index = $arg"
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let "index+=1"
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done # $* sees all arguments as single word.
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echo "Entire arg list seen as single word."
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echo
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index=1 # Reset count.
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# What happens if you forget to do this?
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echo "Listing args with \"\$@\":"
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for arg in "$@"
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do
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echo "Arg #$index = $arg"
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let "index+=1"
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done # $@ sees arguments as separate words.
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echo "Arg list seen as separate words."
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echo
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index=1 # Reset count.
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echo "Listing args with \$* (unquoted):"
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for arg in $*
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do
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echo "Arg #$index = $arg"
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let "index+=1"
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done # Unquoted $* sees arguments as separate words.
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echo "Arg list seen as separate words."
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exit 0
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