command

问题 This question already has an answer here : How do I save a ruby file? (error) (1 answer) Closed 6 years ago . I am receiving the error No such file or directory in my command line and I think it's because I am not saving the ruby files somewhere specific. All I did was create a random folder where I would save my ruby files. Do I need to save my scripts in the original ruby folder? Thanks! ** This is Windows 7. 回答1: No, you can save your .rb files anywhere you can write. If you want to access

问题 How to create a folder witha a folder name containing spaces in linux? For Example, folder name should be "Stack OverFlow". 回答1: you can also do mkdir Stack\ OverFlow the \ does the same thing as " " but it is easier. so you can do stuff like mkdir Stack\ OverFlow\ is\ Great . you can manipulate that folder using the \ as well. so things like cd Stack\ OverFlow and rm -rf Stack\ OverFlow . 回答2: Just use quotes around the name: mkdir "this is my dir" Then you can check it by also using quotes:

问题 I was wondering how I would add a command for 'UpTime' in my commands that will show how long the twitch channel has been live for. This is my whole code: https://pastebin.com/ty8J3vYS Im not sure if i add it into my commands with things added to it with another case such as case "uptime": irc.sendChatMessage(""); break; Any help/guidance would be great. Thanks in advanced. 回答1: You can use Twitch's own API for this. Using this URL: https://api.twitch.tv/kraken/streams/CHANNEL_ID CHANNEL_ID

问题 I am trying to find an active NIC, an active NIC is one where the command wil return UP for me. In my command: # cat /sys/class/net/eth0/operstate I am returned a value of UP In another command, I type: # cat /sys/class/net/eth1/operstate I get a value of DOWN Overall I have 4 eth's. I basically have to use the command to determine UP or DOWN /sys/class/net/eth[0|1|2|3]/operstate = up | down I want to be able to write a program where I will be able to return the eth[0|1|2|3] value that is UP.

问题 I've a fixed width text file so it contains leading zeros and spaces and I need to remove carriage return and line feed characters from the file. Could you please let me know how can I do this using batch script? Input: ABCDEF GHIJK0000ADS ABCDEF GHIJK0000ADS ABCDEF GHIJK0000ADS Output: ABCDEF GHIJK0000ADSABCDEF GHIJK0000ADSABCDEF GHIJK0000ADS Thanks, Niranjan 回答1: There is no trivial pure batch solution if you have existing lines that may begin with spaces. It is possible to write such lines

问题 What I have: using MVVM pattern a view written in XAML a command MyCommand in the ViewModel which gets called from several places in the view a method DoSthInView that operates on the view, defined in codebehind My Goal: Whenever the command is executed, I want to call DoSthInView , no matter which control executed the command. Question: Since in MVVM the ViewModel does not know the View, I cannot call DoSthInView from the ViewModel. So how do call this code? Own thoughts: To be less abstract

问题 i have a problem with php ! i want to run an external program with php . this program work in command line and in linux platform . so it must be work just fine . but i try more time and i can't run it . so what's wrong ! this is the link of the program : http://www.lalescu.ro/liviu/fet/ and this is the command which work fine in command line and not the case in php : ./fet --inputfile=Hopwood.fet --outputdir=out and this is the php code : <?php `./fet --inputfile=Hopwood.fet --outputdir=out`

问题 i have a problem with php ! i want to run an external program with php . this program work in command line and in linux platform . so it must be work just fine . but i try more time and i can't run it . so what's wrong ! this is the link of the program : http://www.lalescu.ro/liviu/fet/ and this is the command which work fine in command line and not the case in php : ./fet --inputfile=Hopwood.fet --outputdir=out and this is the php code : <?php `./fet --inputfile=Hopwood.fet --outputdir=out`

问题 this is a follow-up to my question asked in this thread: Extracting string after last instance of delimiter in a Batch file I am working on writing a batch file that takes an unknown number of strings denoting directories from a java program (which calls the .bat) as arguments. These directories are saved in an "array" called "dirs". for /F "tokens=2 delims==" %%z in ('set dirs[') do ( set "parm=%~1" for %%a in (%parm:\= %) do set folder=%%a echo %folder% shift ) The "dirs" array will hold on

问题 I have three files in a directory File 1: a b c d File 2: 1 2 3 4 File 3: e f g h I know that in windows command prompt, when I type "copy * new.txt", I get a file called new.txt which looks like the following. a b c d 1 2 3 4 e f g h In command prompt, how would I combine the files horizontally, so I get the following for my combined file? a b 1 2 e f c d 3 4 g h 回答1: You can install some proper (Unix/Linux) tools from here and do it like this: paste -d" " file1 file2 file3 a b 1 2 e f c d 3