search for: not_there

Dear all, Suppose I have a hash created with this x <- list() for (i in c('test', 'some', 'more')){ x[[i]] <- runif(1) } then I want to extract the elem of that hash with a vector > q <- c("some", "more", "not_there") But why this failed? > extracted <- x[[q]] Error in x[[q]] : subscript out of bounds we expect the output of 'extracted' to be a vector as well. When the key is not present to give "NA" in vector - Gundala Viswanath Jakarta - Indonesia

...;, cmd); This is a problem, because it assumes the user's shell supports a particular command syntax, beyond just requiring that it support the "$SHELL -c <command>" convention. For example, if your shell is fish and you have e.g.: match exec "getent passwd %u | grep -q NOT_THERE" This doesn't work, because: $ fish -c "getent passwd res | grep -q NOT_THERE" && echo match $ fish -c "exec getent passwd res | grep -q NOT_THERE" && echo match res:x:11500:11500::/home/res:/bin/bash match ... and of course, the shell might n...