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How to hide command output in Bash
I want to make my Bash scripts more elegant for the end user. How do I hide the output when Bash is executing commands?
7 A...
Why do browsers match CSS selectors from right to left?
...ag/node and needn't have to wait for the whole page except when it finds a script, in which case it temporarily pauses and completes execution of the script and then goes forward.
If it does the other way round it will be inefficient because the browser found the element it was scanning on the fir...
How to properly import a selfsigned certificate into Java keystore that is available to all Java app
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I ended up writing a small script that adds the certificates to the keystores, so it is much easier to use.
You can get the latest version from https://github.com/ssbarnea/keytool-trust
#!/bin/bash
# version 1.0
# https://github.com/ssbarnea/keytool-...
How to use font-awesome icons from node-modules
... as part of your build process. For example, you can use a npm postinstall script to copy the files to the correct directory:
"postinstall": "cp -R node_modules/font-awesome/fonts ./public/"
For some build tools, there are preexisting font-awesome packages. For example, webpack has font-awesome-w...
How to prevent buttons from submitting forms
...bmit and handling the event server-side - this is known as unobtrusive JavaScript.
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Html code as IFRAME source rather than a URL
...he iframe. Example.
Edit: The other alternative is to do this with Javascript. This is almost certainly the technique I'd choose. You can't guarantee how long a data URL the browser will accept. The Javascript technique would look something like this:
var iframe = document.getElementById('fo...
How should strace be used?
...ever, we haven't always had the source code or sometimes were dealing with scripted languages that weren't straight-forward to run under a debugger. In this case, you run strace on an already running program and you will get the list of system calls being made. This is particularly useful if you a...
How to run script as another user without password?
I have script.sh that must be run as user2. However, this script can only be run under user1 in my application.
3 Answers
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Print a file's last modified date in Bash
...file name appended to the end of the date without adding more lines to the script.
PS - I use #!/usr/bin/env bash as I'm a Python user by day, and have different versions of bash installed on my system instead of #!/bin/bash
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Drop all tables whose names begin with a certain string
...ALLOCATE cmds
This is cleaner than using a two-step approach of generate script plus run. But one advantage of the script generation is that it gives you the chance to review the entirety of what's going to be run before it's actually run.
I know that if I were going to do this against a product...