2093ad296f
function old new delta parse_dollar 786 820 +34 expand_one_var 1579 1592 +13 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/0 up/down: 47/0) Total: 47 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
32 lines
655 B
Plaintext
Executable File
32 lines
655 B
Plaintext
Executable File
# ${#c} for any single char c means "length of $c", including all special vars
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false
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echo One:${#?}
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(exit 10)
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echo Two:${#?}
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(exit 100)
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echo Three:${#?}
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echo
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echo One:${##}
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set -- 1 2 3 4 5 6 7 8 9 0
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echo Two:${##}
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set -- 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 \
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1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 \
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1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 \
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1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0
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echo Three:${##}
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echo
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v=$$
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test "${#v}" = "${#$}"
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echo 'Ok ${#$}:' $?
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echo
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sleep 0 &
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v=$!
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test "${#v}" = "${#!}"
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echo 'Ok ${#!}:' $?
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# TODO: ${#-} ${#_}
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