This is just a simple way to delete files recursively using your terminal in any UNIX-like operating system:
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find . -type f -name "FILES_PATTERN" -exec rm {} \; // Example find . -type f -name "*.mp3" -exec rm {} \; |
-name “FILES_PATTERN” : File pattern.
-exec rm -rf {} \; : Delete all files that match the file pattern.
-type f : Not include directories.
These are just the steps to update Node.js by using your terminal:
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sudo npm cache clean -f sudo npm install -g n |
The n package represents a Node helper, and running this command upgrades node to the latest stable version.
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sudo n stable |
Just to confirm we can check our version:
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node -v // Output v6.3.1 |
This is a common issue that is related to bad installation of our favorite PHP package manager: Composer. Let’s fix it:
Open your terminal and run following comand in order to get the latest version of Composer:
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curl -sS https://getcomposer.org/installer | php |
I recommend you to move the composer.phar file to a global “bin” directory, in my case (macOS) the path is:
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mv composer.phar /usr/local/bin/composer.phar |
Create an alias for easy access:
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alias composer='/usr/local/bin/composer.phar' |
If everything is ok, now it is time to verify our Composer version:
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composer --version |
That’s it! Start making great Symfony 2 projects 🙂
Today I was trying to consume an external video API for streaming a set of videos; so I got the code for the PHP source, create all my configuration but when I tried to get the actual data from the external server via cURL; I was obtaining nothing; so, in order to get the error’s message, this is what I did:
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var_dump(curl_error($ch)); |
Which basically gets the error after the connection. The message was the following one:
SSL certificate problem: unable to get local issuer certificate
1) Download the certificate from http://curl.haxx.se/ca/cacert.pem
2) Create a folder under your home:
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mkdir /Users/alex/ssl |
3) Copy or move the file with the certificate you just downloaded:
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mv /Users/alex/Downloads/cacert.pem /Users/alex/ssl |
4) Open your php.ini and look for this directive curl.cainfo (the path should vary, depending on your system or meta-package you are using: WAMP, XAMPP, AMPPS have different paths).
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[curl] ; A default value for the CURLOPT_CAINFO option. This is required to be an ; absolute path. curl.cainfo = |
5) Type there you path to the certificate; for example in my case, this was the configuration I did:
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curl.cainfo = /Users/alex/ssl/cacert.pem |
6) Restart your Apache.
7) Enjoy!
In my life as a front-end and back-end developer, I am searching for very specific strings in thousands of files and directories, so one of my favorite commands in UNIX and Linux is the grep command. This awesome command is able to find complex strings based on patterns.
Watch this video and learn how to use and make your life easier. Enjoy and share the video, and remember be happy with your console!
How many times do you create directories (folder) in your computer? I know for sure this is one of the most frequent operations in daily work, right? What about if I tell you there is a great command for UNIX and Linux for fast creation of any directory or directories you want!
Well, watch this video and become in a master of creation of directories. Enjoy and share if you liked it!
A very common operation in UNIX-like and Linux operating systems is to set permissions to files and directories, I have seen many people suffering because of these permissions, so today I am going to explain you how to use the chmod command, with this command you will be able to modify any permissions in the file system.
So, let´s start with the video I hope you find it useful for your daily work. Enjoy it!
This is the first video about UNIX and Linux commands, in this session we are going to learn how to use the ls command which allows us to get a list directories and files. Enjoy and share this video, and remember be happy with your code!
Hi!
Today, I just want to share you an easy way to check the SHA1 digest using a the terminal in Mac OSX. This command is really useful when you need to know if any file -for example an ISO- was downloaded correctly.
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openssl sha1 your_file |
For example, I downloaded Kali Linux (the new distribution for penetration and security testing, :p)
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openssl sha1 kali-linux-1.0.6-i386.iso |
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SHA1(kali-linux-1.0.6-i386.iso)= 518aad75c2c5f1c60b2068760712f7e82c02d703 |
That’s it!
Be happy with your SHA1 digest 🙂
Today, after downloading a new version of a Linux distribution, I needed to check MD5 Hash in order to verify if the ISO file had not any error. This is a common task for IT people, for this reason, I would like to share with you the easiest way to get the MD5 Hash in Mac OS X:
1) Open a terminal
2) Use the command: md5 name_of_file for example. My file was: LT-DVD-x86_64-GM-DVD1.iso
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md5 LT-DVD-x86_64-GM-DVD1.iso |
After running previous command you will obtain an output like this:
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MD5 (LT-DVD-x86_64-GM-DVD1.iso) = e79339d7e29405deb09b7d2372dd80f2 |
3) Compare MD5 obtained with the MD5 Hash published by distributor (it is common that people who upload the file, also upload the MD5 codes). For example, in my case I checked that my Linux was damaged because these codes didn’t coincide 🙁 so it was necessary to download again.
4) An alternative command to get the same result is: openssl md5 name_of_file. As you can see, it doesn’t matter which command you choose, both of them will return the same hash.
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openssl md5 LT-DVD-x86_64-GM-DVD1.iso |
That’s it!
Be happy with your code!
—
Alex Arriaga 
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