I have a FILE *, returned by a call to fopen(). I need to get a file descriptor from it, to make calls like fsync(fd) on it. What’s the function to get a file descriptor from a file pointer? 3 Answers 3
How can I import variables from one file to another? example: file1 has the variables x1 and x2 how to pass them to file2? How can I import all of the variables from one to another? 7 Answers 7
How can I move files (like mv command shell) on node.js? Is there any method for that or should I read a file, write to a new file and remove older file? 17 Answers 17
Unless I’m missing something, it seems that none of the APIs I’ve looked at will tell you how many objects are in an <S3 bucket>/<folder>. Is there any way to get a count? 32 Answers 32 Using AWS CLI aws s3 ls s3://mybucket/ –recursive | wc -l or aws cloudwatch get-metric-statistics \ –namespace AWS/S3 –metric-name … Read more
I’m performing a simple task of uploading a file using Python requests library. I searched Stack Overflow and no one seemed to have the same problem, namely, that the file is not received by the server: import requests url=”http://nesssi.cacr.caltech.edu/cgi-bin/getmulticonedb_release2.cgi/post” files={‘files’: open(‘file.txt’,’rb’)} values={‘upload_file’ : ‘file.txt’ , ‘DB’:’photcat’ , ‘OUT’:’csv’ , ‘SHORT’:’short’} r=requests.post(url,files=files,data=values) I’m filling the value … Read more
Can we rename a file say test.txt to test1.txt ? If test1.txt exists will it rename ? How do I rename it to the already existing test1.txt file so the new contents of test.txt are added to it for later use? 15 Answers 15
I have problem with changing a dict value and saving the dict to a text file (the format must be same), I only want to change the member_phone field. My text file is the following format: memberID:member_name:member_email:member_phone and I split the text file with: mdict={} for line in file: x=line.split(‘:’) a=x[0] b=x[1] c=x[2] d=x[3] e=b+’:’+c+’:’+d … Read more
I have a string with a C# program that I want to write to a file and always overwrite the existing content. If the file isn’t there, the program should create a new file instead of throwing an exception. 5 Answers 5
I’m using Python, and would like to insert a string into a text file without deleting or copying the file. How can I do that? 8 Answers 8
I am writing a nightly build script in bash. Everything is fine and dandy except for one little snag: #!/bin/bash for file in “$PATH_TO_SOMEWHERE”; do if [ -d $file ] then # do something directory-ish else if [ “$file” == “*.txt” ] # this is the snag then # do something txt-ish fi fi done; … Read more
