CODEWITHSUNDEEP
bashvariablesyumrepository
Nathan Gaston
Nathan Gaston

Reputation: 11

Echo variable into file

I wrote my own repo file and am attempting to script the installation in bash.

My code:

echo -e "[repo name]\nname=repo - $serverver - $basearch...\n.." >> /etc/yum.repos.d/reponame.repo

However when I run the command the $serverver and $basearch are missing.

How can I echo the variables into the file with out it trying to determine them?

I have attempted 

echo -E

"$serverver"

'$serverver'

`$serverver`

\"$serverver\"

Upvotes: 1

Views: 2615

Answers (2)

aktivb
aktivb

Reputation: 2082

echo -e "[repo name]\nname=repo - \$serverver - \$basearch...\n.." >> /etc/yum.repos.d/reponame.repo

$ denotes shell variable expansion. If you want a literal $ it has to be escaped, as above, or you must use single quotes. If you want to expand shell variables they must be defined, or else they will yield the empty string.

Upvotes: 2

iamauser
iamauser

Reputation: 11479

To add to yum.repos.d use single quotes' instead of double". That preserves the $ signs as it is which is later interpreted by yum.

echo -e '[repo name]\nname=repo - $serverver - $basearch...\n..' >> /etc/yum.repos.d/reponame.repo

Upvotes: 2

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