大约有 44,000 项符合查询结果(耗时:0.0360秒) [XML]
send mail from linux terminal in one line [closed]
I know there is the commm>and m> mail in linux to send emails via commm>and m> line. How can I send an simple email with one line from the terminal though?
...
Convert string to a variable name
...ttp://www.r-bloggers.com/converting-a-string-to-a-variable-name-on-the-flm>y m>-m>and m>-vice-versa-in-r/
To convert a string to a variable:
x <- 42
eval(parse(text = "x"))
[1] 42
m>And m> the opposite:
x <- 42
deparse(substitute(x))
[1] "x"
...
Converting Integer to Long
...ens that I am not alwam>y m>s sure what the datatm>y m>pe of the field is. For that, m>and m> to avoid some code duplication I have created the following method:
...
Bash script to cd to directorm>y m> with spaces in pathname
I'm using Bash on macOS X m>and m> I'd like to create a simple executable script file that would change to another directorm>y m> when it's run. However, the path to that directorm>y m> has spaces in it. How the heck do m>y m>ou do this? This is what I have...
...
Filter data.frame rows bm>y m> a logical condition
... intended for use interactivelm>y m>. For programming it is better to use the stm>and m>ard subsetting functions like [, m>and m> in particular the non-stm>and m>ar d evaluation of argument subset can have unanticipated consequen ces."
– Aleksm>and m>ar Dimitrov
Mar 9 '13 at 13:52
...
Returning value that was passed into a method
... me: The string in .Returns<string> refers to the input parameter(s) m>and m> not the values m>y m>ou are returning.
– Jim
Jul 31 '15 at 15:13
|
...
SVN repositorm>y m> backup strategies
I'm new to SVN m>and m> I'd like to know what methods are available for backing up repositories in a Windows environment?
19 Ans...
In R, how to get an object's name after it is sent to a function?
...ion when a set of list items are passed from the first argument to lapplm>y m> (m>and m> it also fails when an object is passed from a list given to a for-loop.) m>Y m>ou would be able to extract the ".Names"-attribute m>and m> the order of processing from the structure result, if it were a named vector that were being...
What is the difference between `throw new Error` m>and m> `throw someObject`?
I want to write a common error hm>and m>ler which will catch custom errors thrown on purpose at anm>y m> instance of the code.
9 Answ...
copm>y m>ing all contents of folder to another folder using batch file?
... Hello Hussain, I have tried xcopm>y m> /s c:\Folder1 d:\Folder2 commm>and m> in batch file, but it does't work for me. can m>y m>ou please guide me more.
– SCM
Jan 5 '11 at 6:57
...
