cmd & Execute cmd in background. cmd1 ; cmd2 Command sequence; execute multiple cmds on the same line. { cmd1 ; cmd2; } Execute commands as a group in the current shell. (cmd1 ; cmd2) Execute commands as a group in a subshell. cmd1 | cmd2 Pipe; use output from cmd1 as inp...
Startup:-V, --version display the version of Wget and exit-h, --help print this help-b, --background go to background after startup-e, --execute=COMMAND execute a `.wgetrc'-style commandLogging and inputfile:-o, --output-file=FILE log messages to FILE-a, --append-output=FILE a...
Definitions:Parenthesis: () (plural parentheses)Brackets: [] (also called square brackets)Braces: {} (also called curly braces)Backticks: ``More$(...) means execute the command in the parens in a subshell and return its stdout. Example:$ echo "The current date is $(date)"The current d...
COMMAND is exactly what read_command () places into GLOBAL_COMMAND. ASYNCHROUNOUS, if non-zero, says to do this command in the background. @@ -534,7 +536,13 @@ execute_command_internal (command, async #else if (breaking || continuing) return (last_command_exit_value); - if (comma...
When we run a command “in the background” (there really is no such place in Linux), all that really means is that we disconnect keyboard input from the command and the shell doesn’t wait for the command to complete before it gives another prompt and accepts more command input. Output...
界面是由系统的终端驱动和 bash 共同提供的。 shell 将每个管道分配给一个 作业(job)。它保存一个当前运行的作业表,可以 用 jobs 命令来列出。当 bash 启动一个异步的作业时 (background,后台执行) ,它输出这样的一行: [1] 25647 表明这个作业的作业号是 1...
apache = "a patchy" server apt = Advanced Packaging Tool ar = archiver as = assembler awk = "Aho Weiberger and Kernighan"三个作者的姓的第一个字母 bash = Bourne Again SHell bc = Basic (Better) Calculator bg = BackGround biff = 作者HeidiStettner在U.C.Berkely养的一条狗,喜欢对邮递员汪汪...
You can even use "&" to run multiple commands in the background. Examples: Run a single command with “&”: Run multiple commands simultaneously using “&”: Using the pipe operator (|) The pipe operator (|) is used to force the second command in a chain to use the output of the ...
Run a job in background mode. bind Used to bind a keyboard sequence. break Used to exit from a running loop in script. cd Change the directory to another directory. command Run a specific command without the normal shell lookup. continue Resumes the next iteration of the loop in script. ...
Attaching an ampersand (&) will cause bash to run the command in the background, and bash can return so you would start another process. Can the WAIT command help? If you know much about bash commands, you may have thought of using the WAIT command to control how bash executes your com...