theeverindian / my_stack_overflow

my_stack_overflow

C++

Issues

Issue	Description	Resolution	links
concat const char*	concat const char*	cast to string -> back to c_str()	https://stackoverflow.com/questions/1995053/const-char-concatenation
linker errors when compiled with gcc	Programs compiles in g++ but exits with linker errors in gcc	When you compile with gcc, the C++ libraries are not linked in by default. Always build C++ code with g++.	https://stackoverflow.com/questions/1221902/programs-compiles-in-g-but-exits-with-linker-errors-in-gcc
Undefined symbols for architecture x86_64	compilation problem	use g++ instead of gcc	https://stackoverflow.com/questions/8034568/undefined-symbols-for-architecture-x86-64-which-architecture-should-i-use
int to string	int to string	std::to_string(num)	http://www.cplusplus.com/reference/string/to_string/

Python

Issue	links
how to capture subprocess error	https://stackoverflow.com/a/62047314/3915372
python - convert UTC timestamp to unixtime	https://stackoverflow.com/a/44439877/3915372

Linux / Shell

Description	Command	Link
-z mean in Bash	check if variable is null or zero	https://stackoverflow.com/a/18096739/3915372
How to self-terminate a bash script after timeout?	use SECOND (special variable)	https://unix.stackexchange.com/a/130926/456264,
How to use sudo inside a docker container?	docker exec -u root -t -i container_id /bin/bash	https://stackoverflow.com/a/49529946/3915372
How to check if a variable is set in Bash?	if [ -n "$1" ]	https://stackoverflow.com/a/3601734/3915372
How to create a permanent “alias”?	use ~/.bash_profile	https://askubuntu.com/a/1417/981405
How to find architecture of my PC and Ubuntu?	uname -a or uname -m	https://askubuntu.com/a/189641/981405
Check existence of input argument in a Bash shell script	if [ $# -eq 0 ] if [ -z "$1" ]	https://stackoverflow.com/a/6482403/3915372
Multithreading in Bash	use & and wait	https://stackoverflow.com/a/2425914/3915372
How to conditionally do something if a command succeeded or failed	command && echo "OK" || echo "NOK"	https://unix.stackexchange.com/a/90995/456264
replace a string in file using shell script	sed -i "s|VALUE_BEFORE_REPLACE|${TO_BE_REPLCAED_VARIABLE_OR_VALUE}|gi" filename.txt	https://stackoverflow.com/a/8487046/3915372
How to store a command in a variable in a shell script?	x="ls | wc" eval "$x"	https://stackoverflow.com/a/5615748/3915372
How to execute command stored in a variable?	eval "$cmd"	https://stackoverflow.com/a/4668800/3915372
Using “${a:-b}” for variable assignment in scripts	VAR1="${VAR1:-default value}"	https://unix.stackexchange.com/a/122848/456264
How to copy files from/to a Linux VM	scp -r macFolder username@vm_ip_addr:~/. or scp -r username@vm_ip_addr:~/VMfolder ~/.	https://uoa-eresearch.github.io/vmhandbook/doc/copy-file-linux.html
Need to assign the contents of a text file to a variable in a bash script	file_contents=$(cat answer.txt)	https://stackoverflow.com/questions/14116748/need-to-assign-the-contents-of-a-text-file-to-a-variable-in-a-bash-script

Kubernetes

Issue	links

Resources

Description	links
Socket programming	https://www.technical-recipes.com/2014/getting-started-with-client-server-applications-in-c/#:~:text=A%20demonstration%20of%20simple%20Internet,number%20which%20defaulted%20to%201234.
current time in milliseconds	https://stackoverflow.com/questions/41077377/how-to-get-current-time-in-milliseconds
bazel c++ create and link with shared library	https://stackoverflow.com/questions/53514630/bazel-c-create-and-link-with-shared-library
How to convert string to IP address	https://stackoverflow.com/questions/5328070/how-to-convert-string-to-ip-address-and-vice-versa
Sleep for milliseconds	https://stackoverflow.com/questions/4184468/sleep-for-milliseconds
Passing struct to function	https://stackoverflow.com/questions/10370047/passing-struct-to-function
GDB debugger commands	https://condor.depaul.edu/glancast/373class/docs/gdb.html
generate random number in c++	http://www.cplusplus.com/reference/cstdlib/rand/
Failed to generate gRPC service classes	https://stackoverflow.com/questions/45449352/failed-to-generate-grpc-service-classes
Redefining or changing macro value #define	https://stackoverflow.com/questions/9274500/redefining-or-changing-macro-value
C char* to int conversion	https://stackoverflow.com/questions/13145777/c-char-to-int-conversionv

Git

Description	Command
View git repo configuration	git config --list

Bazel

Description	Command

General

Description	links