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Setting the MySQL root user password on OS X
...te is so clear, than the above mentioned
$ sudo /usr/local/mysql/support-files/mysql.server stop
$ sudo /usr/local/mysql/support-files/mysql.server start --skip-grant-tables
/usr/local/mysql/bin/mysql
mysql> FLUSH PRIVILEGES;
mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY 'MyNewPass';
my...
Read environment variables in Node.js
... convert the value to a string.
Avoid Boolean Logic
Even if your .env file defines a variable like SHOULD_SEND=false or SHOULD_SEND=0, the values will be converted to strings (“false” and “0” respectively) and not interpreted as booleans.
if (process.env.SHOULD_SEND) {
mailer.send();...
Downloading MySQL dump from command line
...ddress] -u [uname] -p db_name > db_backup.sql
It should drop the .sql file in the folder you run the command-line from.
EDIT: Updated to avoid inclusion of passwords in CLI commands, use the -p option without the password. It will prompt you for it and not record it.
...
pdftk compression option
...tibilityLevel=1.4 -dPDFSETTINGS=/screen -dNOPAUSE -dBATCH -dQUIET -sOutputFile=output.pdf input.pdf
Edit: I just discovered another option (for lossless compression), which avoids the nasty gs command. qpdf is a neat tool that converts PDFs (compression/decompression, encryption/decryption), and...
How does the Windows Command Interpreter (CMD.EXE) parse scripts?
...mode.
Batch Line Parser:
Here is a brief overview of phases in the batch file line parser:
Phase 0) Read Line:
Phase 1) Percent Expansion:
Phase 2) Process special characters, tokenize, and build a cached command block: This is a complex process that is affected by things such as quotes, specia...
Shell command to sum integers, one per line?
...
Bit of awk should do it?
awk '{s+=$1} END {print s}' mydatafile
Note: some versions of awk have some odd behaviours if you are going to be adding anything exceeding 2^31 (2147483647). See comments for more background. One suggestion is to use printf rather than print:
awk '{s+=$1}...
Merging: Hg/Git vs. SVN
...
In "Known Issues" there is warning that merge tracking migh not work with file renames, e.g. when one side renames file (and perhaps modifies it), and second side modifies file without renaming (under old name).
Both Git and Mercurial handle such case just fine in practice: Git using rename detect...
Should CSS always preceed Javascript?
... the test 20 times in the 3 major browsers.
Results
First, with the CSS file delayed by 500ms:
Browser: Chrome 18 | IE 9 | Firefox 9
CSS: first last | first last | first last
=======================================================
Header Exec | | ...
How to run a single test from a rails test suite?
...
NOTE: This doesn't run the test via rake. So any code you have in Rakefile will NOT get executed.
To run a single test, use the following command from your rails project's main directory:
ruby -I test test/unit/my_model_test.rb -n test_name
This runs a single test named "name", defined in t...
How to test an Android Library Project
...xample.lib". Create a test project targeting your library. In the manifest file you'll see package="com.example.lib.test", and targetPackage="com.example.lib". Just change the package from "com.example.lib.test" to "com.example.lib" (targetPackage leave as is).
Also, make sure that the library is r...