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Clever Geek Handbook

Variable in bash script not working as expected

I have this script:

#!/bin/bash
VAR="eric.sql"
sudo mysqldump -c -u username -p1234 dbname > $VAR

But if I run this script, I get this error:

: Protocol error 3: mysql-export.sh: cannot create eric.sql

But if I don't use this variable, but only this:

#!/bin/bash
VAR="eric.sql"
sudo mysqldump -c -u username -p1234 dbname > eric.sql

... it works well. What am I wrong?

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2 answers


The problem was that the script had Windows style line breaks (I used notepad). After i used Nano write a script, it solved it.



Thanks for answers!

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sudo

may change the $ PATH variable, depends on your security policy.

   -E  The -E (preserve environment) option will override the env_reset
       option in sudoers(5)).  It is only available when either the match-
       ing command has the SETENV tag or the setenv option is set in sudo-
       ers(5).


You can add the full path to the file or remove it sudo

in your script. This should work as well:

 sudo PATH="$PATH" mysqldump -c -u username -p1234 dbname > $VAR
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