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POSyntax error checking whether account number is numeric
 

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  1. POSyntax error checking whether account number is numeric
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    <pre><code>if [[ ${account_nr} =~ ^[0-9]+$ &amp;&amp; ${from_account_nr} =~ ^[0-9]+$ ]] </code></pre> <p>This is intended to check whether the account number is numeric or not. I'm getting a syntax error.</p> <p><em>An earlier version of this question lacked the space between <code>if</code> and <code>[[</code>; the actual code has the required space.</em></p> <p>It showing the below error message:</p> <pre><code>syntax error: `${account_nr}' missing expression operator </code></pre> <p>I am using bash shell. You people are telling it is working. but I am trying with example like below it is giving error.</p> <pre><code>jai = "CNM" hanuman = "BRK" if [[ $jai =~ ^[0-9]+$ &amp;&amp; $hanuman =~ ^[0-9]+$ ]] then echo "Jai hanuman" echo "valid input" fi </code></pre> <p>it showing the error like below.</p> <pre><code>./temp.sh: line 11: jai: command not found ./temp.sh: line 12: hanuman: command not found </code></pre> <p>In my actual program it is not working: " Now I am givig the problem indetail:"</p> <ol> <li>In one file I stored all the transactions details, each line for one transaction.</li> <li>by using the below while loop each time I am reading one transaction detail while read blank srvrtid blank member_nr blank account_nr blank acct_type blank routing_nr blank amount blank proc_date blank from_account_nr blank from_acct_type blank do</li> <li><p>Inside this I want to check account_nr and from_account_nr values are numeric or not the if condition I have given the below</p> <p><code>if [[ ${SQL_STATEMENT} -gt 0 &amp;&amp; ${account_nr} =~ ^[0-9]+$ &amp;&amp; ${from_account_nr} =~ ^[0-9]+$ ]]</code></p></li> <li><p>It is not showing any error for <code>&amp;{SQL_STATEMENT}</code>, this <code>SQL_STATEMENT</code> is assigned with the value returned by the SELECT query.(total number of transactions).</p></li> <li><p>when I run the script it is showing the below error.</p> <p>syntax error: `${account_nr}' missing expression operator.</p></li> </ol> <p>please help for my problem.</p>
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    1. COSo this line causes syntax error? `if [[ ${account_nr} =~ ^[0-9]+$ && ${from_account_nr} =~ ^[0-9]+$ ]]`
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    2. COWhat shell are you using? I ran your updated `if` in `bash` and it worked fine, as-is. It would help if you shared your error message. In expressing a problem like this, these bit of detail matter quite a lot.
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    3. CO@mbratch He made an edit 9 minutes after you answered. I think he just doesn't want to admit the mistake or accept an answer.
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