Bash syntax error. Error: expected primary-expression before ‘)’ token. bash syntax. syntax error, unexpected '$filename'. parse error: syntax error, unexpected 'else' (t_else), expecting ',' or ';'.

Bash syntax error. Error: expected primary-expression before ‘)’ token. bash syntax. syntax error, unexpected '$filename'. parse error: syntax error, unexpected 'else' (t_else), expecting ',' or ';'.