Bash Aliases that I think are useful

gistfile1.sh

# I just installed SanDisk 6Gig/s SSD in my Sony VAIO Laptop today. 
# I also installed Xubuntu 13.04 on it as well. I have been 
# using Ubuntu from almost a year now. I was actually kind of 
# getting tired of Ubuntu, it was causing a lot of issues. And yes I 
# am well aware of the fact that Xubuntu is technically Ubuntu. 

# Anyways that's not why I am writing this gist. I am just creating 
# this gist so I can have a reference to my bash aliases file 
# and so that other's can use it as an example as well. 

# Add more if you have more simple useful aliases.

alias aptget='sudo apt-get'
alias xupdate='sudo apt-get update'
alias xupgrade='sudo apt-get upgrade'
alias cd..='cd ..'
alias svim='sudo vim'
alias ports='netstat -tulanp'
alias ping='ping -c 5'
alias h='history'

# confirmation 
alias mv='mv -i'
alias cp='cp -i'
alias ln='ln -i'

# reboot / halt / poweroff
alias reboot='sudo /sbin/reboot'
alias poweroff='sudo /sbin/poweroff'
alias halt='sudo /sbin/halt'
alias shutdown='sudo /sbin/shutdown'

## pass options to free ## 
alias meminfo='free -m -l -t'
 
## get top process eating memory
alias psmem='ps auxf | sort -nr -k 4'
alias psmem10='ps auxf | sort -nr -k 4 | head -10'
  
## get top process eating cpu ##
alias pscpu='ps auxf | sort -nr -k 3'
alias pscpu10='ps auxf | sort -nr -k 3 | head -10'
   
## Get server cpu info ##
alias cpuinfo='lscpu'
    
## older system use /proc/cpuinfo ##
##alias cpuinfo='less /proc/cpuinfo' ##
     
# get GPU ram on desktop / laptop## 
alias gpumeminfo='grep -i --color memory /var/log/Xorg.0.log'

# copy a new file onto old file but create a backup of old file as well
cpbk() {
  mv $1 $1.bak
  cp $2 $1
}

# no more cd ../../../, just do up 3
up() {
  local d=""
  limit=$1
  for ((i=1 ; i <= limit; i++))
    do
      d=$d/..
    done

  d=$(echo $d | sed 's/^\///')
  if [ -z "$d" ]; then
    d=..
  fi
  cd $d
}