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

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 ...

... 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 ...

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

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. ...

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...

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

... 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 ...

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...