How can i read certain words in a txt file into my script ?

[htetnaing]

I'm a newbie. So, please help me out of this problem. I'm trying to read certain words from a txt file into my script. Here is an example

example.txt //my txt file name
person name age sex //this is the data which will b in my txt file
medicine record hospital date // this is also

what i wanna do is i wanna read " person " and " medicine" only 2 words from that txt file and make a decision whether "person " and " medicine" is already in the text file or not. How can i retrive that information that specific words and test it in my script file ? Please help me out of this . It's just way over my head. I've tried sed , awk , and filter but still i dunno so far.

Thanks in advance

[wje_lf]

When does your instructor say this assignment is due?

[htetnaing]

ok he said this week Friday is the due date. So, i'm sort of nervous. Please help me out of this. What i'm asking for is not a complete source code. just direct me to the right command or website and i'll try to get it on my own. Please just direct me to the right command.

[wje_lf]

If you have two specific words, and you want to know whether either of them is in a given text file, grep is the tool you want.

At the command line, do this:

man grep

If the man page for grep is not installed on your system, google this:

man grep linux

Hope this helps. Good luck!

[htetnaing]

ah ! Thanks for that . I completely forgot the grep command . This is what i'm trying to do . Gosh ! how foolish ! I didn't realize that i can do that with grep . Thanks wje_lf

if [ -f $1 -o ! $1 ]
then
echo "TYPE IN THE FILE NAME OR FILE IS ALREADY EXISTED"
fi
totalLine=`more schemas.txt | wc -l`
for (( i=0 ; i < $totalLine ; i++))
{
endLine=$totalLine
targetID=`tail +$endLine schemas.txt | head -n1`
echo $targetID
endLine=endLine-1
}