Map \r do insert random number in vim

imap <leader>r <C-r>=system('echo "$(($RANDOM % 100))"')<cr>
This mapping function is called RANDOM bash and enter a number between 1 and 100
Sample Output
75

0
By: voyeg3r
2010-10-24 00:37:44

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    voyeg3r · 2009-08-16 17:48:03 3
  • I like the fact the Patola's version uses only ones and zeros, but I also like the sparse output of the other versions. This one combines both of those features and eliminates some unnecessary cruft. You can vary the sparseness by changing "$(($RANDOM % 5))" to another number. The number in this term "$(($RANDOM % 4))" controls how frequently the numbers are output bold.


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    echo -e "\e[32m"; while :; do for i in {1..16}; do r="$(($RANDOM % 2))"; if [[ $(($RANDOM % 5)) == 1 ]]; then if [[ $(($RANDOM % 4)) == 1 ]]; then v+="\e[1m $r "; else v+="\e[2m $r "; fi; else v+=" "; fi; done; echo -e "$v"; v=""; done
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  • Broaden your knowledge of the utilities available to you in no particular order whatsoever! Then use that knowledge to create more nifty one-liners that you can post here. =p Takes a random number modulo the number of files in $dir, prints the filename corresponding to that number, and passes it as an argument to man.


    -2
    dir="/bin"; man $(ls $dir |sed -n "$(echo $(( $RANDOM % $(ls $dir |wc -l | awk "{ print $1; }" ) + 1 )) )p")
    camocrazed · 2010-08-20 16:31:50 1
  • You can use \n in your inserted data to insert multiple lines. The leading number is the position in the file where you want the insert, so in this case a '1' indicates the top of the file.


    0
    sed -i '1iI am a new line' file.txt
    bbates · 2014-02-22 14:36:57 0

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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