What are the differences between poll and select?
I am referring to the POSIX standard select and poll system C API calls. 3 Answers 3
unix
Print a file’s last modified date in Bash
I can’t seem to find how to print out the date of a file. I’m so far able to print out all the … Read more
How to kill a child process after a given timeout in Bash?
I have a bash script that launches a child process that crashes (actually, hangs) from time to time and with no apparent reason … Read more
How do you run a single query through mysql from the command line?
I’m looking to be able to run a single query on a remote server in a scripted task. For example, intuitively, I would … Read more
Setting PATH environment variable in OSX permanently
I have read several answers on how to set environmental variables on OSX as permanently. First, I tried this, How to permanently set … Read more
What is the reason for performing a double fork when creating a daemon?
I’m trying to create a daemon in python. I’ve found the following question, which has some good resources in it which I am … Read more
How can I convert a file pointer ( FILE* fp ) to a file descriptor (int fd)?
I have a FILE *, returned by a call to fopen(). I need to get a file descriptor from it, to make calls … Read more
How to get the current directory in a C program?
I’m making a C program where I need to get the directory that the program is started from. This program is written for … Read more
Get the date (a day before current time) in Bash
How can I print the date which is a day before current time in Bash? 17 Answers 17
Sorting a tab delimited file
I have a data with the following format: foo<tab>1.00<space>1.33<space>2.00<tab>3 Now I tried to sort the file based on the last field decreasingly. I … Read more