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    <p>From the <a href="http://linux.die.net/man/1/bash" rel="nofollow">man page for bash</a>, regarding <code>eval</code>:</p> <blockquote> <p>eval [arg ...]: The args are read and concatenated together into a single command. This command is then read and executed by the shell, and its exit status is returned as the value of eval.</p> </blockquote> <p>When <code>c</code> is defined as <code>"\"/bin/ls\" arf"</code>, the outer quotes will cause <em>the entire thing</em> to be processed as the first argument to <code>eval</code>, which is expected to be a command or program. You need to pass your <code>eval</code> arguments in such a way that the target command and its arguments are listed separately.</p> <p>The <code>$(...)</code> construct behaves differently than <code>eval</code> because it is not a command that takes arguments. It can process the entire command at once instead of processing arguments one at a time.</p> <p>A note on your original premise: The main reason that people say that <code>eval</code> is evil was because it is commonly used by scripts to execute a user-provided string as a shell command. While handy at times, this is a <strong>major</strong> security problem (there's typically no practical way to safety-check the string before executing it). The security problem doesn't apply if you are using <code>eval</code> on hard-coded strings inside your script, as you are doing. However, it's typically easier and cleaner to use <code>$(...)</code> or <code>`...`</code> inside of scripts for command substitution, leaving no real use case left for <code>eval</code>.</p>
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    1. POBash eval replacement $() not always equivalent?
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    1. COAdditional tip: when trying to see how an expanded command is seen by the shell, using `set -v` can sometimes give more accurate results than `echo`.
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A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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