How does one go about sorting a vector containing custom (i.e. user defined) objects. Probably, standard STL algorithm sort along with a predicate (a function or a function object) which would operate on one of the fields (as a key for sorting) in the custom object should be used. Am I on the ...

I would like to know when do we need to place a file under 5 Answers 5 ...

How can I get the list of cross product pairs from a list of arbitrarily long lists in Python? 3 Answers ...

I want to create one proc like below but it has error on syntax. Could anyone pointing out the problem? 7 Answers ...

... Method #1: Using bash without getopt[s] Two common ways to pass key-value-pair arguments are: Bash Space-Separated (e.g., --option argument) (without getopt[s]) Usage demo-space-separated.sh -e conf -s /etc -l /usr/lib /etc/hosts ...

... You need to use get to obtain the value rather than the character name of the object as returned by ls: x <- 1L typeof(ls()) [1] "character" typeof(get(ls())) [1] "integer" Alternatively, for the problem as presented you ...

常用Linux命令详解（持续更新）对我们日常工作中经常会用到的一些Linux命令进行一下详解。logout,shutdown,reboot,useradd,passwd,ls,ll,cd,mkdir,vi,cp,rm,mv,chmod,chown,find,grep,tail,tar,gzip,fdisk,kill,netstat等。一、注销，关机，重启，新建用户、删除...

How can I view any local commits I've made, that haven't yet been pushed to the remote repository? Occasionally, git status will print out that my branch is X commits ahead of origin/master , but not always. ...

I've recently discovered git's patch option to the add command, and I must say it really is a fantastic feature. I also discovered that a large hunk could be split into smaller hunks by hitting the s key, which adds to the precision of the commit. But what if I want even more precision, if the...

I'm trying to backup/restore a PostgreSQL database as is explained on the Docker website, but the data is not restored. 10 ...