Tip 1 :
Use markers to set a place where you want to go back quickly or to delete some block of code
ma - mark current position as 'a' [ can use a-z in same file, or can use A-Z between files]
'a - go to mark a
d'a - delete current position to mark a [ can use 'p' after this to paste that block ]
Tip 2:
Do you want to reverse the entire file or a block...
Educating yourself does not mean that you were stupid in the first place; it means that you are intelligent enough to know that there is plenty left to 'learn'. -Melanie Joy
Tuesday, 5 June 2012
Monday, 4 June 2012
Creating A List Using vim
Some time you may need to insert a list of ascending numbers in a file. We can do this using vim very easily.
Method 1 :
:put =range(11,15)
This will create a series of increasing numbers after the current line including 11 and 15.
output will be-
11
12
13
14
15
Method 2 :
Some times if you want to add a constant predefined string before the number series, then you...
`Tar`- An Ultimate Archive Utility
How to use tar
tar [options] [name of tar file to be created] [list of files and directories to be included]
1. Creating an archive using tar
$ tar -cvf target.tar file1 file2 dir1
$ tar -cvzf target.tar.gz dirname/ [ creates gzipped tar...
'cat' can be harmful..
'cat' can be harmful at times. some people might have lost the data because of improper usage of cat command like cat > filename.txt, or it can do over write some existing files data without prompting the user.
to get rid out of these situations
1. open the terminal
2. execute " set -o noclobber "
that's it. now next time when cat tries to over write the existing file it will prompt the us...