make target/linux/* directories self-contained, use the selected kernel version for...
[oweals/openwrt.git] / include / shell.sh
1 getvar() {
2         eval "echo \"\${$1}\""
3 }
4
5 var2file() {
6         local var
7         eval "var=\"\${$1}\""
8         if [ -n "$var" ]; then echo "$var" > "$2"; fi
9 }
10
11 isset() {
12         local var
13         eval "var=\"\${$1}\""
14         [ -n "$var" ]
15 }