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Since first becoming an Ubuntu user I have developed a growing list of aliases, and there are some that I cannot imagine being without. This makes me think that there are probably still tons of aliases that I haven't thought to use which could make the lives of me and fellow ubuntu users easier.

What aliases do you guys use which are:
general - they apply to lots of users
helpful - you use them often or they save a lot of time when you do use them

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Apologies in advance if this is considered too subjective. I think it could become a good resource so I figured its worth trying. –  Andy Groff Jan 12 '11 at 23:35
5  
Community Wiki-fied. –  Marco Ceppi Jan 12 '11 at 23:52

6 Answers 6

Here are some that I like:

#Opens current directory in a file explorer
alias explore='nautilus .'

#Opens current directory in a file explorer with super user privileges
alias suexplore='sudo nautilus .'

#Opens current directory in Ubuntu's Disk Usage Analyzer GUI with super user privileges in the background
alias analyze='gksudo baobab . &'

#Opens a GUI text editor in the background. Can obviously be replaced with your favorite editor
alias text='gedit &'
#Same as above with super user privileges
alias sutext='gksudo gedit &'

#Opens a file with whatever program would open by double clicking on it in a GUI file explorer
#Usage: try someDocument.doc
alias try='gnome-open'

#lists contents of current directory with file permisions
alias ll='ls -l -sort'

#list all directories in current directories
alias ldir='ls -l | grep ^d'

#self explanatory
alias ..='cd ..'
alias ...='cd ../../'

#show aliases
alias a='echo "------------Your aliases------------";alias'
#Apply changes to aliases
alias sa='source ~/.bash_aliases;echo "Bash aliases sourced."'
#Edit Aliases
alias via='gksudo gedit ~/.bash_aliases &'
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Sadly the dd command already exists –  Benoît Legat Jul 23 '13 at 14:19
    
Yea that's a good point. Edited to ldir –  Andy Groff Jul 23 '13 at 18:27

The alias I use most often:

alias go=gnome-open
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These are my preferred aliases:

alias ll='ls -lAbhc'
alias l='ls -lBohc'

#History search (use: hs sometext)
alias hs='history | grep $1'

#Sudo vim
alias svim='sudo vim'

#Add extra protection against mistakes
alias rm='rm -I'

#Unrar alias
alias unrar='rar e'
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I'm totally gonna use the history search and rm protection. Great addition! –  Andy Groff Jan 13 '11 at 4:56

a couple of my favorites (and most heavily used!) are:

alias tgz='tar -zxvf'

and

alias tbz='tar -jxvf'
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I use 122 aliases at the moment, so I won't list all of them, but here's a short list of some useful ones:

 # Key press savers
 #  Naturally, key press saving aliases like these are really user-dependent.
 #  These are just a few examples.
alias s='sudo ' # the space allows for command name expansion.
alias g='git'
alias q='exit'

alias ls='ls --color=auto' # color
alias l='ls -F'            # classify
alias la='l -A'            # classify, hidden

alias ll='l -lh'  # human readable
alias lla='ll -A' # hidden

alias x='clear;'
alias xl='clear; l'
alias xla='clear; la'

# not really an alias, but it can be useful
cl () { cd $@ && ls -F; }

alias rs='rsync -avz --progress --fuzzy -e "ssh"'
alias rsd='rsync -avz --progress --delete-after --fuzzy -e "ssh"'

I used to have a small shell function that either changed into a directory or editted a file, depending on what was passed to it. That can be extremely useful when you go to change into a directory but decide to edit a file there instead. I wrote a little sourced shell function that does this and a little more: https://github.com/Paradoxial/fin/blob/master/forward.sh. I'm currently working on rewriting it to handle all sorts of files: https://github.com/Paradoxial/fin/blob/super-f/forwards.sh.

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Here is my list of alias. Few of them have already been included in others' lists.

# Very frequently used. Use: psg java
alias psg='ps aux | grep -i $1'

alias ..='cd ..'
alias ...='cd ../../'

# Updates repo cache and installs all kinds of updates
alias update='sudo apt-get update && sudo apt-get upgrade && sudo apt-get dist-upgrade'

# Frees up the cached memory
alias freemem='sync && echo 3 | sudo tee /proc/sys/vm/drop_caches'

# Useful for history searching. Use: hs java
alias hs='history | grep -i $1'
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