Ham5ter's personal .profile file

.bash_profile

#!/bin/bash
#
# Ham5ter's personal .bash_profile file
#
# Author: ham5ter@ham5ter.de
#

### helper functions ###

helpers() {
  echo "genpasswd <LENGTH>"
  echo "calc \"<CALCULATION>\""
  echo "nocomment <FILE>"
  echo "numperms <FILES>"
}

# Generate a Password with easy to type Characters
# Usage: genpasswd <LENGTH>
genpasswd() {
  local l=$1
  [ "$l" == "" ] && l=16
  tr -dc A-Za-z0-9_ < /dev/urandom | head -c ${l} | xargs
}

# Calculate on the Shell via bc
# Usage: calc "3 * 3 / 2"
calc() {
  echo "scale=8; $@" | bc
}

# Strip comments and empty lines from Configuration Files
# Usage: nocomment "/path/to/config.file"
nocomment() {
  [ $# -lt 1 ] && return; egrep -v "^[[:cntrl:] ]*[#;]|^$" $1;
}

# Show Numeric Permmisions of a File
# Info: https://askubuntu.com/questions/152001/how-can-i-get-octal-file-permissions-from-command-line#152003
# Usage: numperms <FILES>
numperms(){
  stat -c "%a %n" "$@"
}

# add the personal /bin directory to the PATH variable
if [ -d "$HOME/bin" ] ; then
  PATH="$HOME/bin:$PATH"
fi

### Aliases ###

alias ..="cd .."
alias ...="cd ../.."
alias cd..="cd .."

### ls customization ###

export LS_COLORS='di=34:ln=36:so=0:pi=0:ex=32:bd=0:cd=0:su=0:sg=0:tw=34:ow=34:'
alias ls="ls --color"
alias l="ls -lh"
alias ll="ls -lah"

### colorized Bash Prompt ###
export CLICOLOR=1
if [[ $EUID -eq 0 ]]; then
  # root Prompt
  export PS1="\[\033[35m\]\t\[\033[m\]-\[\033[31m\]\u\[\033[m\]@\[\033[33m\]\h:\[\033[33;1m\]\w\[\033[m\]# "
else
  # normal user Prompt
  export PS1="\[\033[35m\]\t\[\033[m\]-\[\033[36m\]\u\[\033[m\]@\[\033[32m\]\h:\[\033[33;1m\]\w\[\033[m\]\$ "
fi
### grep customization ###

alias grep="GREP_COLOR='1;31' grep --color -Hn"

### History ###
export HISTCONTROL=ignoredups
export HISTFILESIZE=30000
export HISTIGNORE="ls:cd:cd..:[bf]g:exit:..:...:l:ll"
export HISTTIMEFORMAT="%d/%m/%y %T "

### Autocompletion ###

# make Bash tab complete case insensitively
bind "set completion-ignore-case on"