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I use Cent OS 7, and have written a Bash script.

I tried to get the length of variable:

#!/bin/bash
URL_STRING="1";
VAR_LENGTH=${#URL_STRING}
echo $VAR_LENGTH;

But I get syntax error

SLePort
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MisterPi
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    Where is URL_STRING set? Also probz best not to use uppercase variable names as they are typically used for env variables. – 123 Nov 17 '16 at 09:12
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    What error did you get? – Inian Nov 17 '16 at 09:12
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    Are you really in bash? What exact error do you get? It is a valid syntax you are using, so nothing should happen – fedorqui Nov 17 '16 at 09:22
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    This is valid posix shell syntax. It works quite fine. Here's a link to the Single Unix Specification stating what should be supported: http://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#tag_18_06_02 – John Szakmeister Nov 17 '16 at 09:34

1 Answers1

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Try this code

echo $URL_STRING| awk '{printf("%d",length($0))}' | read asd

infotoni91
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Yisong Qiu
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