1 2printf '%s\n' '\a\ b c' | { read a b; printf '%s\n' "x${a}x${b}x"; } 3printf '%s\n' '\a b\ c' | { read a b; printf '%s\n' "x${a}x${b}x"; } 4printf '%s\n' '\a\:b:c' | { IFS=: read a b; printf '%s\n' "x${a}x${b}x"; } 5printf '%s\n' '\a:b\:c' | { IFS=: read a b; printf '%s\n' "x${a}x${b}x"; } 6printf '%s\n' '\\ a' | { read a b; printf '%s\n' "x${a}x${b}x"; } 7printf '%s\n' '\\:a' | { IFS=: read a b; printf '%s\n' "x${a}x${b}x"; } 8printf '%s\n' '\\\ a' | { read a b; printf '%s\n' "x${a}x${b}x"; } 9printf '%s\n' '\\\:a' | { IFS=: read a b; printf '%s\n' "x${a}x${b}x"; } 10