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Recent questions tagged Linux
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linux - Implementing pipe in C
I am trying to implement pipe in C. eg - $ ls | wc | wc I have written the following code - #include<stdio.h> ... , or any other way to do this? See Question&Answers more detail:os...
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linux - OpenShift: "Failed to execute control start" on node application
I realize in advance this is kind of a vague question, but I'm stumped as to what else I can try ... . Any suggestions are much appreciated. See Question&Answers more detail:os...
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linux - Why does C99 complain about storage sizes?
This is some code I'm compiling on Linux: #include <net/if.h> int main() { struct ifreq ifr; } gcc ... the definition of struct ifreq in Linux? See Question&Answers more detail:os...
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linux - How to force abort on "glibc detected *** free(): invalid pointer"
In Linux environment, when getting "glibc detected *** free(): invalid pointer" errors, how do I identify which ... in gdb for the glibc error? See Question&Answers more detail:os...
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linux - Java is installed, in listing, but execution produces "./java: No such file or directory"
I just ran the script below and it fetches and unpacks the JDK into the correct location. Problem is that every ... /jdk1.7.0_02/bin: directory See Question&Answers more detail:os...
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linux - Syntax error near unexpected token 'then'
I typed the code the same as The Linux Command Line: A Complete Introduction, page 369 but prompt the error: ... code? My system is Ubuntu. See Question&Answers more detail:os...
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linux - Proper way to reference files relative to application root in Node.JS
I have a Node.JS application running on Linux at AWS EC2 that uses the fs module to read in HTML template ... to the root of the application? See Question&Answers more detail:os...
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linux - How to pass parameters to a Bash script?
I have a bash script as below, and I want it to read two dates as parameters, for example: myshell date1 ... tmp.xml mv tmp.xml wlacd_stat.xml See Question&Answers more detail:os...
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linux - Responsibility of stack alignment in 32-bit x86 assembly
I am trying to get a clear picture of who (caller or callee) is reponsible of stack alignment. The case for ... three arguments for scanf) = 28 See Question&Answers more detail:os...
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linux - I need a list of Async-Signal-Safe Functions from glibc
Non syscall's wrappers but something like snprintf(), dprintf() See Question&Answers more detail:os...
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linux - How to do an atomic increment and fetch in C?
I'm looking for a way to atomically increment a short, and then return that value. I need to do ... me towards the appropriate instructions? See Question&Answers more detail:os...
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Oct 17, 2021
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linux - Executing a bash script upon file creation
I am looking write a small bash script to, when launched, watch a directory for any newly created files. ... have adjusted the code accordingly See Question&Answers more detail:os...
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linux - How to undo strip - i.e. add symbols back to stripped binary
I have a stripped binary and symbol-file. Is it possible to add the symbols back to binary and create an ... using this binary w/ valgrind. See Question&Answers more detail:os...
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linux - Non-blocking getch(), ncurses
I'm having some problems getting ncurses' getch() to block. Default operation seems to be non-blocking (or have ... return value is OK too. See Question&Answers more detail:os...
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Oct 17, 2021
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linux - Check for IP validity
How do I check the validity of an IP address in a shell script, that is within the range 0.0.0.0 to 255.255.255.255? See Question&Answers more detail:os...
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Oct 17, 2021
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linux
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linux - find matching text and replace next line
I'm trying to find a line in a file and replace the next line with a specific value. I tried sed, but it ... </string>/g" /path/to/file See Question&Answers more detail:os...
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linux - Sorting on the last field of a line
What is the simplest way to sort a list of lines, sorting on the last field of each line? Each line ... without needing to manipulate the data. See Question&Answers more detail:os...
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Oct 17, 2021
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linux - How do I add a line of text to the middle of a file using bash?
I'm trying to add a line of text to the middle of a text file in a bash script. Specifically I'm trying ... recreate the file be my best move? See Question&Answers more detail:os...
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linux kernel - What is the difference between module_init and subsys_initcall while initializing the driver?
What is the difference between module_init and subsys_initcall while initializing the driver? See Question&Answers more detail:os...
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linux - Get free disk space with df to just display free space in kb?
I'm trying to output the amount of free disk space on the filesystem /example. If I run the command df -k ... free disk-space of example in kb? See Question&Answers more detail:os...
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linux - How do you write a C program to execute another program?
In linux, I would like to write a C program that launches another program. When the program runs, the ... Your help is greatly appreciated. See Question&Answers more detail:os...
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linux - Why exit code 141 with grep -q?
Can someone explain why I get exit code 141 from the below? #!/usr/bin/bash set -o pipefail zfs list | grep ... should be success, I would say. See Question&Answers more detail:os...
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linux - Python read named PIPE
I have a named pipe in linux and i want to read it from python. The problem is that the python process ' ... hears' for data from the pipe. See Question&Answers more detail:os...
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linux - Why no output is shown when using grep twice?
Basically I'm wondering why this doesn't output anything: tail --follow=name file.txt | grep something | grep ... I am running ubuntu 10.04 See Question&Answers more detail:os...
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linux - library path when dynamically loaded?
How can I get the path of the shared library from within the library itself? In other words, ... } } dynamic_library_load_unload_handler_hook; } See Question&Answers more detail:os...
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359
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linux - How to read all files in a folder using C
I wish to read all the text files in a particular folder. The files' names do not have any common pattern in ... : Failed to open entry file See Question&Answers more detail:os...
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linux - RTSP stream and OpenCV (Python)
I have an IP camera streaming on Linux through rtsp protocol and h264 linux driver. I am able to see the video in ... I am stuck on it. Thanks. See Question&Answers more detail:os...
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linux - Best way to script remote SSH commands in Batch (Windows)
I am looking to script something in batch which will need to run remote ssh commands on Linux. I would want ... screen. Anyone done this before? See Question&Answers more detail:os...
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