bash coding

stocky021 · 10-31-2007, 12:39 AM

im not sure if this is the right place to post this. im doing a uni assignment, and it involves using shell scripting to copy a html file off the net, and read one line from it and print out a value. so far i have
GET http://website, and this displays the entire source code of the page in the terminal. im thinking i need to use awk to find the one line i need and to copy it to a variable, but i dont know how to go about this. can anyone help?

Gethyn · 10-31-2007, 05:15 AM

Well, you could try finding the line you're looking for using grep.

bigearsbilly · 11-01-2007, 04:28 AM

you can use while read to go through the file,
or you can simply use grep to find the line
and use the subst expressions ${X##} ${X%%} to
chop the bits you don't want.
or use sed

get you started

pixellany · 11-01-2007, 07:44 AM

What text do they use for BASH scripting? If you are just starting, get Bash Guide for Beginners--free at http://tldp.org

As stated, grep is maybe the best way to find a line with certain content. To grab a value from that line, you need to know the structure---eg is the value always in the same place? If so, then AWK should do it (it works by fields)

Excellent tutorials on SED and AWK here: http://www.grymoire.com/Unix/