Wednesday, January 19, 2011

Use cd alias to navigate up the directory effectively

When you are navigating up a very long directory structure, you may be using 
cd ..\..\ with multiple ..\’s depending on how many directories you want to go 
up as shown below. 
# mkdir -p 
/tmp/very/long/directory/structure/that/is/too/deep 
 
# cd /tmp/very/long/directory/structure/that/is/too/deep 
 
# pwd 
/tmp/very/long/directory/structure/that/is/too/deep 
 
# cd ../../../../ 
 
# pwd 
/tmp/very/long/directory/structure 
Instead of executing cd ../../../.. to navigate four levels up, use one of the 
following three alias methods: 
 
Method 1: Navigate up the directory using “..n” 
In the example below, ..4 is used to go up 4 directory level, ..3 to go up 3 
directory level, ..2 to go up 2 directory level. Add the following alias to your 
~/.bash_profile and re-login. 
alias ..="cd .." 
alias ..2="cd ../.." 
alias ..3="cd ../../.." 
alias ..4="cd ../../../.." 
alias ..5="cd ../../../../.." 
 
# cd 
/tmp/very/long/directory/structure/that/is/too/deep 
 
# ..4 
[Note: use ..4 to go up 4 directory level] 
 
# pwd 
/tmp/very/long/directory/structure/
Method 2: Navigate up the directory using only dots 
In the example below, ….. (five dots) is used to go up 4 directory level.  
Typing 5 dots to go up 4 directory structure is really easy to remember, as 
when you type the first two dots, you are thinking “going up one directory”, 
after that every additional dot, is to go one level up. So, use …. (four dots) to 
go up 3 directory level and .. (two dots) to go up 1 directory level. Add the 
following alias to your ~/.bash_profile and re-login for the ….. (five dots) to 
work properly. 
alias ..="cd .." 
alias ...="cd ../.." 
alias ....="cd ../../.." 
alias .....="cd ../../../.." 
alias ......="cd ../../../../.." 
 
# cd /tmp/very/long/directory/structure/that/is/too/deep 
 
# ..... 
[Note: use ..... (five dots) to go up 4 directory level] 
 
# pwd 
/tmp/very/long/directory/structure/ 
Method 3: Navigate up the directory using cd followed by consecutive dots 
In the example below, cd….. (cd followed by five dots) is used to go up 4 
directory level. Making it 5 dots to go up 4 directory structure is really easy to 
remember, as when you type the first two dots, you are thinking “going up 
one directory”, after that every additional dot, is to go one level up. So, use 
cd…. (cd followed by four dots) to go up 3 directory level and cd… (cd 
followed by three dots) to go up 2 directory level. Add the following alias to 
your ~/.bash_profile and re-login for the above cd….. (five dots) to work 
properly. 
alias cd..="cd .." 
alias cd...="cd ../.." 
alias cd....="cd ../../.." 
alias cd.....="cd ../../../.." 
alias cd......="cd ../../../../.." 
 
# cd /tmp/very/long/directory/structure/that/is/too/deep 
 
# cd..... 
[Note: use cd..... to go up 4 directory level] 
 
# pwd 
/tmp/very/long/directory/structure 
Method 5: Navigate up the directory using cd followed by number 
In the example below, cd4 (cd followed by number 4) is used to go up 4 
directory level.  
 
alias cd1="cd .." 
alias cd2="cd ../.." 
alias cd3="cd ../../.." 
alias cd4="cd ../../../.." 
alias cd5="cd ../../../../.." 
CU next tutorial 

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