How to run node script from BASH?
Below shell script is running a node script, which gets an object from package.json, updates the app version and writes it back to the package.json using node API. // foo.sh node <<EOF var fs...
Category: Linux
How to check your ubuntu version
Occasionally you might want to know the version of ubuntu when installing a package. I usually use the following command $ cat /etc/lsb-release DISTRIB_ID=Ubuntu DISTRIB_RELEASE=13.10 DISTRIB_CODENAME=saucy DISTRIB_DESCRIPTION=”Ubuntu Saucy Salamander (development branch)”
How to set the default version of nodejs in a linux terminal
If you are fed up of having to set the default nodejs version in each terminal tab, then this post is for you. Hopefully you installed node using nvm. Use the following command to...
How to remove untracked files using git?
git clean removes all the untracked files from the project. It is very in large projects where you have lots of build related, log files which are not necessary to build the product. If...
-nt file test operator in bash
File based condition for if statements in bash Condition: [ newerfile -nt olderfile ] Description: newerfile was changed more recently than olderfile, or if newerfile exists and olderfile doesn’t. Example: if [ file1.txt -nt...
Append one file to another in Bash
To append f2‘s content to f1, one can use the following command: cat f2 >> f1 OR echo f2 >> f1
TZInfo::DataSourceNotFound when using alpine with docker
Turns out, i was getting this error when setting up my rails app with docker on alpine. Many posts suggest to use tzinfo on the gem file. But I felt a better solution would...
What does ip address 0.0.0.0 mean?
The first time I saw that addres I was a bit confused. I used to think that 127.0.0.1 was the only way to refer to your local machine. Turns out, 0.0.0.0 is another way...
How to connect to github via ssh on windows 10
Connecting to Github via SSH is a two steps process on Windows: Install git-scm for windows Setting SSH for Github
Search command line interface / terminal from history
Use the following steps to do the reverse search in your bash history. $ Ctrl + R $(reverse-i-search)`’: [start typing command…] [Tab/Enter] – Tab will complete the command and brings back the CLI. -...
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