append

问题 So, I have a bit of a problem: Originally I was using scp to copy a file from a local machine to a remote machine before I realized that scp overwrites instead of appends. But I need it to append. So I did some Googling and this alternative using cat and ssh popped up instead: cat localfile | ssh user@remoteserver "cat >> remotefile" Problem is, I get this interesting error whenever I use that method: bash: cat: command not found When I normally ssh into my remote machine, I can cat just fine

问题 I am building an application that utilizes an MDM API to make bulk updates to attributes of devices. I am looking to have some sort of visible output/logging in the main view so that the user can see what lines of their CSV may have failed and what the HTTP Response Code was. I can append to an NSTextField or a label easy enough, but seeing as how there may be a large output with many lines, I'd like to have a scrollable text box to append the information to. All of the documentation that I

问题 I'm creating a Pandas DataFrame to store data. Unfortunately, I can't know the number of rows of data that I'll have ahead of time. So my approach has been the following. First, I declare an empty DataFrame. df = DataFrame(columns=['col1', 'col2']) Then, I append a row of missing values. df = df.append([None] * 2, ignore_index=True) Finally, I can insert values into this DataFrame one cell at a time. (Why I have to do this one cell at a time is a long story.) df['col1'][0] = 3.28 This

问题 I'm trying to click add and the content of add will appear for the first time. After it's added, I want to click add and it will only toggle "added", instead of adding "added" on each click Jquery: $(function(){ var NewContent='<div class="added">Added</div>' $(".add").click(function(){ $("#spin").after(NewContent); }); }); HTML: <span class="add">add</span> <span id="spin"></span> Here's a Fiddle: http://jsfiddle.net/Abgec/ 回答1: $(function(){ //start with `NewContent` being the HTML to add

问题 I would be very grateful for some guidance or even a solution! From an array of class names, I'm generating icon sets using a for loop: // icon array var iconsArray = ['fa-search','fa-toggle-up','fa-link']; var iconsArrayLength = iconsArray.length; // loop through array for (var i = 0; i < iconsArrayLength; i++) { // result console.log('<i class="fa' + ' ' + iconsArray[i] + '"></i>'); } I also have a navigation element. The list has the same number of items with an ID: <nav> <ul id="nav"> <li

问题 I have a Pandas Dataframe that contains one column containing cells containing a dictionary of key:value pairs, like this: {"name":"Test Thorton","company":"Test Group","address":"10850 Test #325\r\n","city":"Test City","state_province":"CA","postal_code":"95670","country":"USA","email_address":"test@testtest.com","phone_number":"999-888-3333","equipment_description":"I'm a big red truck\r\n\r\nRSN# 0000","response_desired":"week","response_method":"email"} I'm trying to parse the dictionary,

问题 The file letters.csv contains: b,a,c, The file numbers.csv contains: 32 34 25 13 I would like to append numbers.csv to letters.csv like this: b,a,c,32,34,25,13 I have tried this: sed -e :a -e '{N; s/\n/,/g; ta}' numbers.csv >> letters.csv However, this puts the appended entries on a new line: b,a,c, 32,34,25,13 I would like all entries on the same line. How can this be done? 回答1: You can do it with paste alone. First, convert contents in numbers.csv to comma-separated values. -s is the serial

问题 The file letters.csv contains: b,a,c, The file numbers.csv contains: 32 34 25 13 I would like to append numbers.csv to letters.csv like this: b,a,c,32,34,25,13 I have tried this: sed -e :a -e '{N; s/\n/,/g; ta}' numbers.csv >> letters.csv However, this puts the appended entries on a new line: b,a,c, 32,34,25,13 I would like all entries on the same line. How can this be done? 回答1: You can do it with paste alone. First, convert contents in numbers.csv to comma-separated values. -s is the serial

问题 If I want to append a number to an array initialized to int, how can I do that? int arr[10] = {0, 5, 3, 64}; arr[] += 5; //Is this it?, it's not working for me... I want {0,5, 3, 64, 5} in the end. I'm used to Python, and in Python there is a function called list.append that appends an element to the list automatically for you. Does such function exist in C? 回答1: int arr[10] = {0, 5, 3, 64}; arr[4] = 5; EDIT: So I was asked to explain what's happening when you do: int arr[10] = {0, 5, 3, 64};

问题 I am using JQuery to append large amounts of text inside a tag. I find the more text currently within the tag the slower appending is, and for large amounts of text it is too slow. Is there a more efficient way to append text? Such as for instance creating dummy child tags and setting the content of them rather than appending to the parent? 回答1: Check this presentation and this one too: jQuery Anti-Patterns And in general: do not .append() in loop do not append directly into DOM build a