Skip to main content

Add Environment variables and aliases to Bash on Mac OSX

Refrences:
1. http://www.cyberciti.biz/tips/howto-linux-unix-bash-shell-setup-prompt.html
2. http://www.cyberciti.biz/faq/bash-shell-change-the-color-of-my-shell-prompt-under-linux-or-unix/

Add following in ~/.profile (or ~/.bash_profile, or ~/.bashrc, or /etc/profile if you have access):
export JAVA_VERSION=1.8
export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_40.jdk/Contents/Home
export PATH=$PATH:$JAVA_HOME/bin

alias ll='ls -al'

# This alias recursively destroys all .DS_Store files in the folder I am currently in
alias killDS='find . -name *.DS_Store -type f -delete'

# This alias reloads this file
alias reload_profile='. ~/.profile'

# Mac get stuck very often and are extremely slow and unstable on shutdowns. This forces a shutdown.
alias poweroff='sudo /sbin/shutdown -h now'

# To ignore space changes while doing git diff
alias gitdf='git diff --ignore-space-change'

# Show Git branch in prompt
parse_git_branch() {
  git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/ (\1)/'
}

#Setup bash custom prompt (PS1) with autocomplete
export PS1="[\e[0;31m\u\e[m@\e[0;36m\h\e[m:\e[0;32m\$(pwd)\e[m\e[0;31m\$(parse_git_branch)\e[m]$ "

#To list files in the directory as soon you change to it
cd() {
if [ "$PS1" ]
  then
    if [ "$1" ]
      then builtin cd "$1" && ll
      else builtin cd && ll
    fi
  else
    if [ "$1" ]
      then builtin cd "$1"
      else builtin cd
    fi
fi
}
Then load your changes without logging out:
$ source ~/.bashrc

To make autocolpete on on sigle tab (including symbolic links for directories), edit ~/.inputrc and add:
$include /etc/inputrc
set mark-symlinked-directories on
set show-all-if-ambiguous on

Comments

Popular posts from this blog

wget and curl behind corporate proxy throws certificate is not trusted or certificate doesn't have a known issuer

If you try to run wget or curl in Ununtu/Debian behind corporate proxy, you might receive errors like: ERROR: The certificate of 'apertium.projectjj.com' is not trusted. ERROR: The certificate of 'apertium.projectjj.com' doesn't have a known issuer. wget https://apertium.projectjj.com/apt/apertium-packaging.public.gpg ERROR: cannot verify apertium.projectjj.com's certificate, issued by 'emailAddress=proxyteam@corporate.proxy.com,CN=diassl.corporate.proxy.com,OU=Division UK,O=Group name,L=Company,ST=GB,C=UK': Unable to locally verify the issuer's authority. To connect to apertium.projectjj.com insecurely, use `--no-check-certificate'. To solution is to install your company's CA certificate in Ubuntu. In Windows, open the first part of URL in your web browser. e.g. open https://apertium.projectjj.com in web browser. If you inspect the certifcate, you will see the same CN (diassl.corporate.proxy.com), as reported by the error above ...

Kafka performance tuning

Performance Tuning of Kafka is critical when your cluster grow in size. Below are few points to consider to improve Kafka performance: Consumer group ID : Never use same exact consumer group ID for dozens of machines consuming from different topics. All of those commits will end up on the same exact partition of __consumer_offsets , hence the same broker, and this might in turn cause performance problems. Choose the consumer group ID to group_id+topic_name . Skewed : A broker is skewed if its number of partitions is greater that the average of partitions per broker on the given topic. Example: 2 brokers share 4 partitions, if one of them has 3 partitions, it is skewed (3 > 2). Try to make sure that none of the brokers is skewed. Spread : Brokers spread is the percentage of brokers in the cluster that has partitions for the given topic. Example: 3 brokers share a topic that has 2 partitions, so 66% of the brokers have partitions for this topic. Try to achieve 100% broker spread...

MPlayer subtitle font problem in Windows

While playing a video with subtitles in mplayer, I was getting the following problem: New_Face failed. Maybe the font path is wrong. Please supply the text font file (~/.mplayer/subfont.ttf). Solution is as follows: Right click on "My Computer". Select "Properties". Go to "Advanced" tab. Click on "Environment Variables". Delete "HOME" variable from User / System variables.