append

问题 I want to append "/*" to the output paths from the below cmd: find /home/mba/Desktop/ -type d -name "logs" I tried to use sed regex as below: find /home/mba/Desktop/ -type d -name "logs" | sed -e 's/(^. )/\1/ /' But I got the below error: sed: -e expression #1, char 14: unknown option to `s' Thanks in advance. 回答1: This is a working solution using awk : find /home/mba/Desktop/ -type d -name "logs" | awk '{ print $1"/*" }' Or with sed : find /home/mba/Desktop/ -type d -name "logs" | sed 's/$/\

问题 I'm trying to append to a file in the latest Windows Phone. The problem is i'm trying to do everything asynchronously and i'm not sure how to do it. private async void writeResult(double lat, double lng) { StorageFolder localFolder = ApplicationData.Current.LocalFolder; StorageFile storageFile = await localFolder.CreateFileAsync("result.txt", CreationCollisionOption.OpenIfExists); Stream writeStream = await storageFile.OpenStreamForWriteAsync(); using (StreamWriter writer = new StreamWriter

问题 I'm learning R5RS Scheme at the moment (from PocketScheme) and I find that I could use a function that is built into some variants of Scheme but not all: Append! In other words - destructively changing a list. I am not so much interested in the actual code as an answer as much as understanding the process by which one could pass a list as a function (or a vector or string) and then mutate it. example: (define (append! lst var) (cons (lst var)) ) When I use the approach as above, I have to do

问题 I'm trying to add a link to my page depending on what page you're already on. I'm using Squarespace to build this site, so the easiest way for me to do this would be with Javascript or Jquery. I think there is something wrong with this syntax that i'm missing. I already tried to break out of the quotes with a \, but that wasn't working. If I'm just outputting text, it works fine, but it seems to break when I try and make it work with a link. if(loc == pageOne) { $("#pages").append("<div> <a

问题 I'm trying to add a link to my page depending on what page you're already on. I'm using Squarespace to build this site, so the easiest way for me to do this would be with Javascript or Jquery. I think there is something wrong with this syntax that i'm missing. I already tried to break out of the quotes with a \, but that wasn't working. If I'm just outputting text, it works fine, but it seems to break when I try and make it work with a link. if(loc == pageOne) { $("#pages").append("<div> <a

问题 I have a list : A = ['Yes'] I want to have A = ['Yes',None] How can I do this? 回答1: Just use append : A.append(None) >>> print A ['Yes', None] 回答2: Simple: A.append(None) or A += [None] or A.extend([None]) or A[len(A):] = [None] 来源： https://stackoverflow.com/questions/23238489/how-can-i-append-a-none-value-to-a-list-in-python

问题 I have multiple "," delimited csv files with recorded water pipe pressure sensor data, already sorted by date older-newer. For all original files, the first column always contains dates formated as YYYYMMDD. I have looked at similar discussion threads but couldn't find what I need. Python script to add a new column to every csv file in the directory, where each row of the new column titled as "Pipe" would have a file name, omitting file extension string. Have the option of specifying a cut

问题 I have a list of tables in one column n checkboxes in another column. I want to view data of the tables which I select by clicking on the checkboxes My code is for (int i = 0; i < dataGridView2.Rows.Count; i++ ) { if (dataGridView2.Rows[i].Cells[1].Value != null) { if ((Boolean)dataGridView2.Rows[i].Cells[1].Value == true) { try { string myConnection="datasource=localhost;database=dmrc;port=3306;username=root;password=root"; MySqlConnection myConn = new MySqlConnection(myConnection); string

问题 In the following code I have a page that constructs a shirt. As the user clicks an option ("Male/Female"), the '#shirt' section displays the constructed shirt by layering PNG images on top of each other. For example, selecting a base color of 'blue' will show an image of a blue shirt. Then, selecting a body stitching of "ribbed" will place an image on top of the blue shirt that adds the ribbing detail. Right now, my problem is that each new image replaces previous ones. Everything else works

问题 I have builded this function to check wether or not a script or stylesheet already has been appended to the head tag in HTML. If the script already exists the function should prevent appending the same reference again. This is my code: function appendScript(path, type) { var x = document.getElementsByTagName(type); var header_already_added = false; for (var i=0; i< x.length; i++){ if (x[i].src == path || x[i].href == path){ // ... do not add header again header_already_added = true; } } if