Linux Console Scripting

robsamms · 02-25-2005, 05:45 AM

Hi
I hava a coursework assignment and I have a question which I am completely stuck on. The question reads:

Write a pipeline that updates the content of a file (a file of your choice) by replacing all matches of the word 'and' with the symbol '&' and by replacing the end of each line with "your name". If the command completes successfully it should print 'YES' otherwise it should print"NO".

Please help as I am completely stuck on this.

Thanks Rob.

Ephracis · 02-25-2005, 05:52 AM

Ok, you should consider using gawk to get singel words and so on from the content. use egrep to search for 'and' in a file and then you can play a little with stuff like cat and so on. Check man for those commands and you will figure it out.

We can't do the homework for you.

robsamms · 02-25-2005, 06:13 AM

I managed to write a pipeline that changed the and's to &'s but it only placed my name at the end of each paragraph not each line the script is:

sed -i 's/and/\&/g;s/$/'`whoami`'/g' ./filename && echo YES || echo NO

Sepero · 02-25-2005, 07:23 AM

Your sed command seems to work perfectly on my pc. Perhaps there are no end of lines until the end of each of your paragraphs.