(If n is omitted, the exit status is that of the last command executed. ) 格式:$? 上一个命令的退出码。 格式:trap "commands" EXIT 退出时执行commands指定的命令。( A trap on EXIT is executed before the shell terminates.) 退出码(exit status,或exit code)的约定: 0表示成功(Zero - Success...
Progress bars Get the list of functions in a script Bypass shell aliases Bypass shell functions Run a command in the backgroundAFTERWORDFOREWORDA collection of pure bash alternatives to external processes and programs. The bash scripting language is more powerful than people realise and most tasks ...
如Docker Compose文档所述,“Compose是定义和运行多容器Docker应用程序的工具。” Docker Compose允许应用程序开发人员定义在名为“docker-compose.yml”的单个YAML文件中构成应用程序的所有服务。 然后,只需一条命令,即可创建、构建和启动所有这些服务。此外,所有服务都可以从Docker Compose命令套件内停止和监控。
get_functions() { # Usage: get_functions IFS=$'\n' read -d "" -ra functions < <(declare -F) printf '%s\n' "${functions[@]//declare -f }" }绕过shell别名# alias ls # command # shellcheck disable=SC1001 \ls绕过shell函数
The last example explains the -f option. Open the terminal and run: Advertisement sleep3600&[1]46671wait46671 Open another terminal and stop the process with the kill command: kill-STOP46671 Once the process status changes, the wait command will be completed, and the process exit code will ...
local out requestComp lastParam lastChar comp directive args # Prepare the command to request completions for the program.# Calling ${words[0]} instead of directly %[1]s allows to handle aliases args=("${words[@]:1}") requestComp="${words[0]} %[2]s ${args[*]}" ...
Enough backstory. It's time to look at examples of what generates error codes/statuses. Extracting the elusive exit code To display the exit code for the last command you ran on the command line, use the following command: $echo$?
*adbshell <command命令> 这个命令将登录设备的shell. 后面加<command命令>将是直接运行设备命令, 相当于执行远程命令 5. 从电脑上发送文件到设备 *adb push <本地路径> <远程路径> 用push命令可以把本机电脑上的文件或者文件夹复制到设备(手机) 6. 从设备上下载文件到电脑 ...
# } # # $1 = command # # $2 = ordinal number of argument # # type in $result on success # _fb_adb_arg_type() { # [REAL CODE GENERATED BELOW] # } declare -a _fb_adb_mksh_builtins=( alias bg bind break builtin cat cd chdir command continue echo \ ...
to the standard error output. Second, the script will exit without running the remaining code. With a somewhat “kludgy” modification, we can get a slightly better error message. Consider this code: filename=$1 filename=${filename:?"missing."} ...