Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <p>Even though the answer's already accepted, here's another method for those who need to preserve newlines and special characters like Escape ( <code>\033</code> ): Storing the variable in <strong>base64</strong>.</p> <p>You need: <strong>bc, wc, echo, tail, tr, uuencode, uudecode</strong></p> <h2>Example</h2> <pre><code>#!/bin/sh #====== Definition =======# varA="a b c" # uuencode the variable varB="`echo "$varA" | uuencode -m -`" # Skip the first line of the uuencode output. varB="`NUM=\`(echo "$varB"|wc -l|tr -d "\n"; echo -1)|bc \`; echo "$varB" | tail -n $NUM)`" #====== Access =======# namevar1=varB namevar2=varA echo simple eval: eval "echo \$$namevar2" echo simple echo: echo $varB echo precise echo: echo "$varB" echo echo of base64 eval "echo \$$namevar1" echo echo of base64 - with updated newlines eval "echo \$$namevar1 | tr ' ' '\n'" echo echo of un-based, using sh instead of eval (but could be made with eval, too) export $namevar1 sh -c "(echo 'begin-base64 644 -'; echo \$$namevar1 | tr ' ' '\n' )|uudecode" </code></pre> <h2>Result</h2> <pre><code>simple eval: a b c simple echo: YQpiCmMK ==== precise echo: YQpiCmMK ==== echo of base64 YQpiCmMK ==== echo of base64 - with updated newlines YQpiCmMK ==== echo of un-based, using sh instead of eval (but could be made with eval, too) a b c </code></pre> <h2>Alternative</h2> <p>You also could use the <code>set</code> command and parse it's output; with that, you don't need to treat the variable in a special way before it's accessed.</p>
    singulars
    1. This table or related slice is empty.
    1. POIndirect parameter substitution in shell script
      singulars
      1. PTQuestion
    1. PTAnswer
    1. This table or related slice is empty.
    1. USu_Ltd.
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
 

Querying!

 
Guidance
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.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload