cat? grep? file outputs

[Godsmacker777]

I would like to use my USE variable backup file: use.flags to add a line to make.conf

Would I use cat? or grep? I couldn't seem to find the info myself, but I know it's rather simple.

The cat seems to have my tongue.
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Why must we hear what system you're running gentoo on, especially if all you've got is a measly gig of ram or 3gHz processor?

I want to see signatures boasting 25 cpu clusters and blade severs, or a big 'ole onyx..anyone running gentoo on an onxy??

[flazz]

what is it exactly you want to do?

to append characters to a file use anything that can output to stdout with the >> operator
examples:

[Godsmacker777]

I tried cat /home/jason/use.flags >> /etc/make.copy

which worked fine.

For future reference, how would I use the output of one text file, and add it to a specific line, (or after a specific set of characters, say USE=), in another text file?

~thanks
_________________
Why must we hear what system you're running gentoo on, especially if all you've got is a measly gig of ram or 3gHz processor?

I want to see signatures boasting 25 cpu clusters and blade severs, or a big 'ole onyx..anyone running gentoo on an onxy??

[flazz]

that is some heavy text manipulation, but if all you want to do us maintain use flags, try the program euse, its in app-portage/gentoolkit

[Godsmacker777]

thanks~

I'll take a look at that. I like knowing ways to do things, it helps when you need to improvise D
_________________
Why must we hear what system you're running gentoo on, especially if all you've got is a measly gig of ram or 3gHz processor?

I want to see signatures boasting 25 cpu clusters and blade severs, or a big 'ole onyx..anyone running gentoo on an onxy??

[Doctor]

Something like:
echo USE=`cat file`" >> make.conf

could also probably use sed to switch the new use line with the old one if you wanted to.