Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it’s on-topic for Stack Overflow. Closed 9 years ago. Improve this question I am coming from the postgres world, and am not very new to UNIX. My question is, if there is a way…
Tag: linux
How to edit 300 GB text file (genomics data)?
I have a 300 GB text file that contains genomics data with over 250k records. There are some records with bad data and our genomics program ‘Popoolution’ allows us to comment out the “bad” records with an asterisk. Our problem is that we cannot find a text editor that will load the dat…
gdb step not working as expected
I am debugging static multi-threaded x86-64 C++ application on Linux. I can set breakpoints on functions and stop on them and I can walk step by step over function body. But when I try to step into another function, gdb not stops at it’s beginning and it seems that it just continues execution. When I in…
Using a Chef recipe to append multiple lines to a config file
I’m trying to create a Chef recipe to append multiple lines (20-30) to a specific config file. I’m aware the recommended pattern is to change entire config files rather than just appending to a file, but I dislike this approach for multiple reasons. So far the only solution I found was to use a co…
Bash: Inserting one file’s content into another file after the pattern
I’m trying to write a bash script, which will do the following: reads the content from the first file (as a first argument) reads the content from the second file (as a second argument) finds the line in the second file with the given pattern (as a third argument) inserts text from the first file to the…
Is fopen() a thread safe function in Linux?
If I use fopen() call to open a same file in multi-thread, and write data to the file. Should I use a mutex to ensure the data won’t be disordered? Answer If two threads both open the same file with fopen(), they will each have independent file streams (FILE *) backed by independent file descriptors ref…
Find the files existing in one directory but not in the other [closed]
Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. This question does not appear to be about a specific programming problem, a software algorithm, or software tools primarily used by programmers. If you believe the question would be on-topic on another Stack …
Linux/Unix Socket Self-connection
When a client try to connect to a server, if client and server are both localhost, self-connection may happen(source port and destination port happened to be the same.). But my problem is, client is not listening to that port, how can self-connection be possible? Answer We can simple reproduce this phenomenon…
List all graphic image files with find? [closed]
Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. This question does not appear to be about a specific programming problem, a software algorithm, or software tools primarily used by programmers. If you believe the question would be on-topic on another Stack …
Get text from GTK entry
I’m trying to get what a user has inputed in a text field (entry) but when i run it i keep getting null from gtk_entry_get_text. Errors : Code : So how do i get the input from the user and not just null every time? Answer Pointer to pointer is needed: And in main: