alias name = 'command arg1 arg2' alias name = '/path/to/script' alias name = '/path/to/script.pl arg1' 举个例子,输入下面命令并回车就会为常用的clear(清除屏幕)命令创建一个别名c: alias c = 'clear' 然后输入字母c而不是clear后回车就会清除屏幕了: c 如何临时性地禁用 bash 别名 下面语法可...
importjava.io.BufferedReader;importjava.io.IOException;importjava.io.InputStreamReader;publicclassJavaCallBashExample{publicstaticvoidmain(String[]args){try{// 创建ProcessBuilder对象,指定要执行的Shell脚本及参数ProcessBuilderprocessBuilder=newProcessBuilder("/bin/bash","script.sh");// 设置工作目录,可根据实...
默认索引是 0 -s count 丢弃最初读取的 <count> 行 -t 从读取的每行末尾删除一个 <分隔符>(默认为换行符) -u fd 从文件描述符 <FD> 中读取行,而不是标准输入 -C callback 每读取 <间隔> 行之后对 <callback> 进行求值 -c quantum 指定每次调用 <callback> 之前读取的行数,如果使用了 -C 而没...
# Clear screen on script exit. trap 'printf \\e[2J\\e[H\\e[m' EXIT 忽略终端中断(CTRL + C,SIGINT) trap '' INT 对窗口调整大小做出反应 # Call a function on window resize. trap 'code_here' SIGWINCH 在每个命令之前做点什么 trap 'code_here' DEBUG 当shell函数或源文件完成执行时执行某些...
gcs_ssh_keyscan.sh - SSH keyscans all the GCE VMs returned from the above gce_host_ips.sh script and adds them to ~/.ssh/known_hosts gce_meta.sh - simple script to query the GCE metadata API from within Virtual Machines gce_when_preempted.sh - GCE VM preemption latch script - can...
Use arguments to define the directory to be backed up from the terminal. The new script looks like: #!/bin/bash rsync -av --delete $1 /backup Call that scriptbackup.sh. If you have a directory -- for the purposes of this example, a directory named PROJECT4 -- you can back it up...
Call the Bash interpreter via the command-line::Bash <args>. You can use it to pass arguments to the script. Run Bash in a terminal window directly inside the editor. The template library now has shell options and variables for BASH Version 4.4. ...
Functions are called in your scripts or from the CLI by using their names, just as you would for any other command. In a CLI program or a script, the commands in the function are executed when called. Then the sequence of program flow returns to the calling entity, and the next series...
Scripting is one of the key tools for a sysadmin to manage a set of day-to-day activities such as running backups, adding users/groups, installing/updat...
callback的$1是要写入的数组索引,$2是要写入的行 printf [-v var] format [arguments] 类同C的printf,-v类同sprintf。 read [options] [name ...] 读入一行,不保留分隔符。遇到EOF时退出码大于0。 -u fd -d delim -n nchars 用法类同readarray name 行拆分成字存入这些变量里,变量不够时最后一个...