进入命令行环境以后,一般就已经打开Bash 了。如果你的 Shell 不是 Bash,可以输入bash命令启动Bash。 $ bash 退出Bash 环境,可以使用exit命令,也可以同时按下Ctrl + d。 $ exit Bash 的基本用法就是在命令行输入各种命令,非常直观。作为练习,可以试着输入pwd命令。按下回车键,就会显示当前所在的目录。 $ pwd /...
# off by default to not distract the user: the focus in a terminal window # should be on the output of commands, not on the prompt # force_color_prompt=yes if[ -n"$force_color_prompt"];then if[ -x /usr/bin/tput ] && tput setaf 1 >&/dev/null;then # We have color support;...
-c termuxarchchecksum.sha512 1>/dev/null then _CHKSELF_ "$@" printf "\\e[0;34m%s \\e[1;34m%s \\e[1;32m%s\\e[0m\\n" " 🕛 > 🕜" "TermuxArch $VERSIONID integrity:" "OK" _LOADCONF_ . archlinuxconfig.bash ...
# off by default to not distract the user: the focusina terminal window # should be on the output of commands, not on the prompt #force_color_prompt=yesif[ -n"$force_color_prompt"];thenif[ -x /usr/bin/tput ] && tput setaf1>&/dev/null;then# We have color support; assume it's...
切换时遇到各种莫名其妙的问题，如pip升级后，默认就是安装在python3，python2的pip不起作用了。安装第...
ENDocker Compose 是一个用于定义和运行多容器Docker应用程序的工具。除了可以启动应用程序的多个容器之外，...
done # Output do-while example do-while example do-while example How to create an infinite loop in bash? There are few ways to create an infinite loop in bash, sometimes called an endless loop. You can either use the for, while, or until construct....
The most common runtime errors in a shell script include: Division by zero or use of a string/float variable in a Bash Arithmetic Expression Incorrect subscript when dynamically populating a Bash Associative Array Parsing incorrectly a file or command output like when processing a CSV file in ...
# read and output only one character dd if=/dev/tty bs=1 count=1 2> /dev/null # retore terminal and restore stty stty -cbreak stty $SAVEDSTTY } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 要调用函数,返回键入字符,可以使用命令替换操作,例子如下: ...
bash will use whatever regex engine is installed on the user's system. Stick to POSIX regex features if aiming for compatibility.CAVEAT: This example only prints the first matching group. When using multiple capture groups some modification is needed....