Shell Exit Codes

Exit codes used by POSIX shells (bash, sh, zsh) to indicate the result of a command or script. Codes 128+N indicate termination by signal N.

17 codes

• 0 Success
• 1 General error
• 2 Misuse of shell built-in
• 126 Command cannot execute
• 127 Command not found
• 128 Invalid exit argument
• 129 Terminated by SIGHUP
• 130 Terminated by SIGINT
• 131 Terminated by SIGQUIT
• 132 Terminated by SIGILL
• 133 Terminated by SIGTRAP
• 134 Terminated by SIGABRT
• 137 Terminated by SIGKILL
• 139 Terminated by SIGSEGV
• 141 Terminated by SIGPIPE
• 143 Terminated by SIGTERM
• 255 Exit status out of range