UNIX for Dummies Questions & Answers

Hello all,

I've read a couple different posts on this subject but couldn't quite get what I'm trying to do to work. I have a file and the last line always ends with the text below (without the "s), except the number 294 will be different each time. I want to rename this file to the number that appears on that line. e.g. rename testfile to 294 (without an extension) . Any suggestions or help would be much appreciated! Thanks.


"Status against revision: 294"

I forgot to add that I'm in a linux environment. Thanks.

you can use tail to get the last line. then pipe to awk or cut with delimiter ":" and get the second field. that would be your number. store the result in a variable, then rename using mv. this is actually very simple, so try your best. if not sure, look at the man page or any relevant shell scripting resource for info.

Code:

sed -n '$s/.*[^0-9]\(.*\)/mv "myFile" "\1"/p' myFile | sh

Try...

Code:

awk 'END{system("mv " FILENAME " " FILENAME "." $NF)}' testfile

Just use move command 'mv' to change name of the file either with grep or sed.

Thanks for all the suggestions. I ended up getting the results I wanted by doing the below. Thanks again.


filename=`tail temp | grep : | cut -b '16,17,18,29,30,31'`
mv temp /var/www/migrations/${filename}-`date +%m.%d.%y-%H:%M:%S`