ESRCHESRCH — No Such Process
No process matching the specified process ID was found.
EAFNOSUPPORTThe specified address family is not supported by the protocol or socket implementation.
An attempt was made to create a socket with an unsupported address family, such as using AF_INET6 on a system without IPv6 support.
Verify the address family is supported on the system. Enable IPv6 if needed. Load the required kernel module. Use AF_INET as a fallback.
ESRCHNo process matching the specified process ID was found.
Exit 139The process crashed due to a segmentation fault (signal 11).
ENOTEMPTYAn attempt was made to remove a directory that still contains entries.
EPROTONOSUPPORTThe specified protocol is not supported by this socket domain or is not implemented.
Exit 127The command was not found in any PATH directory.
SIGINT (2)An interrupt signal was sent, typically by pressing Ctrl+C in the terminal.