echo "The value of the variable 'name' is: $name": This line uses the "echo" command to print a message to the terminal. The message includes the text "The value of the variable 'name' is:" followed by the value of the 'name' variable. The variable's value is accessed using the...
When you execute a command or run a script, you receive anexit code. An exit code is a system response that reports success, an error, or another condition that provides a clue about what caused an unexpected result from your command or script. Yet, you might never know about the code,...
When you execute a command or run a script, you receive anexit code. An exit code is a system response that reports success, an error, or another condition that provides a clue about what caused an unexpected result from your command or script. Yet, you might never know about the code,...
When the original PROMPT_COMMAND is an array: exit code of last executed command is not restored before executing the commands stored inside the original PROMPT_COMMAND array __vsc_status is assigned the exit code of the penultimate command stored inside the original PROMPT_COMMAND array Those 2 ...
exit命令用于退出当前shell,在shell脚本中可以终止当前脚本执行。 常用参数 格式:exit n 退出。设置退出码为n。(Cause the shell to exit with a status of n.) 格式:exit 退出。退出码不变,即为最后一个命令的退出码。(If n is omitted, the exit status is that of the last command executed. ) ...
exit命令用于退出当前shell,在shell脚本中可以终止当前脚本执行。 常用参数 格式:exit n 退出。设置退出码为n。(Cause the shell to exit with a status of n.) 格式:exit 退出。退出码不变,即为最后一个命令的退出码。(If n is omitted, the exit status is that of the last command executed. ) ...
6. Using mapfile Command The mapfile command can be used to read entire output of ls -l into array and print the last element of the array. Use mapfile Command 1 2 3 ls -l | mapfile -t arr; echo "${arr[-1]}" OUTPUT 1 2 3 -rw-r--r-- 1 user user 0 Jul 5 09...
variable, which holds the exit code of the last executed command. Basic Bash commands (echo, read, etc.) Basic Bash commands include: echo: Prints text to the terminal. read: Reads input from the user. if: Performs conditional execution of commands....
Code: #!/bin/bash echo "Hello, world!" Output: ad@DESKTOP-3KE0KU4:~$ ./test1.sh Hello, world! Explanation: In the exercise above, echo "Hello, world!": This command prints the string "Hello, world!" to the standard output. The "echo" command is used to output text to the ter...
Let's see what the exit status was. $echo$?1 If we don't set an exit status explicitly, it's assumed to be0or it's the results of the last command that was run. Let's go in here. Let's see how exit statuses work with functions. I am going to create anokfunction. Instead ...