2017-07-06 23:18:20 +05:30
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parameter=abcdef
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offset=2
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noffset=-2
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echo "parameter '${parameter}'"
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echo "varoffset2 '${parameter:${offset}}'"
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echo "varoffset-2 '${parameter:${noffset}}'"
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echo "literal '2' '${parameter:2}'"
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2017-07-06 23:20:42 +05:30
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# This is not interpreted as ${VAR:POS{:LEN}},
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2017-07-06 23:18:20 +05:30
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# but as ${VAR:=WORD} - if VAR is unset or null, substitute WORD
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echo "literal '-2' '${parameter:-2}'"
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echo "literal ' -2' '${parameter: -2}'"
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