Do not disable umask

.bashrc

#
# my basic bashrc file
#
# USAGE:
#
#  $ mkdir ~/github
#  $ cd ~/github
#  $ git clone git@gist.github.com:cf6f78eccaabf463fecbc9177dcb1f7d.git bashrc
#
# Then add these lines to your .bashrc:
#
#  BASHRC="$HOME/github/bashrc/.bashrc"
#  [[ -f $BASHRC ]] && . $BASHRC
#
# Reload .bashrc or relogin, and it works!
#

# If not running interactively, don't do anything
[[ $- != *i* ]] && return

export HISTCONTROL=ignoredups
export LANG=en_US.utf8
export LC_MESSAGES=en_US.utf8
export EDITOR=nano

# Prompt
export TERM=xterm-256color
GREEN="\[$(tput setaf 10)\]"
BLUE="\[$(tput setaf 12)\]"
RESET="\[$(tput sgr0)\]"
PROMPT_DIRTRIM=2
export PS1="[${GREEN}\u@\h${RESET}:${BLUE}\w${RESET}]\$ "

# xshell prompt
PROMPT_COMMAND_SOURCE="$HOME/github/prompt_command/.prompt_command"
[[ -f $PROMPT_COMMAND_SOURCE ]] && . $PROMPT_COMMAND_SOURCE

# grep related
alias egrep='egrep --color=auto'
alias grep='grep --color=auto'

# basic aliases
alias ls='ls --color=auto'
alias ll='ls -alv'

# git aliases
GITALIASES="$HOME/github/gitaliases/.gitaliases"
[[ -f $GITALIASES ]] && . $GITALIASES