$0[11]always point to the shell script name. However, you can use an array variable calledFUNCNAME[12]which contains the names of all shell functions currently in the execution call stack. The element with index 0 is the name any currently-executing shell function.This variableexists onlywhen...
$0[11] always point to the shell script name. However, you can use an array variable calledFUNCNAME[12] which contains the names of all shell functions currently in the execution call stack. The element with index 0 is the name any currently-executing shell function.This variable exists only...
Now you are ready to execute your first bash script: ./hello_world.sh 2. Simple Backup bash shell script #!/bin/bash tar -czf myhome_directory.tar.gz /home/linuxconfig 3. Variables In this example we declare simple bash variable and print it on the screen ( stdout ) with echo comman...
#Method 1: pass the parameter to script directly after script name sqlplus -S gx_adm/gx_adm @/users/robin/dba_scripts/custom/awr/tmp.sql $begin_date $end_date exit robin@SZDB:~/dba_scripts/custom/awr> more tmp.sql SELECT snap_id, dbid, snap_level FROM dba_hist_snapshot WHERE TO_C...
Introduction to Shell Scripts(第 11 章 Shell 脚本简介 Shell 脚本简介) If you can enter commands into the shell, you can write shell scripts (also known as Bourne shell scripts). A shell script is a series of commands written in a file; the shell reads the commands from the file just ...
与Unix 系统上的任何程序一样,您需要为 shell 脚本文件设置可执行位,但同时也必须设置读取位,以便 shell 读取该文件。 最简单的方法如下: 代码语言:javascript 复制 $ chmod+rx script This chmod command allows other users to read and execute script. If you don’t want that, use the absolute mode 700...
Shell Script Functions How to define a function Varibale scopes Return statement break vs exit vs return How to call functions present in another script Linux Commands Help man, help, apropos, whereis, whatis, which: commands that give help about a given command. man -k text: searches for...
# Using basename with the $0 parameter # name=$(basename $0) #$()命令替换,basename命令执行得到的值赋予变量name echo echo The script name is: $name 示例 1.3 测试参数 在shell脚本中使用命令行参数时要小心些。如果脚本不加参数运行,可能会出问题。 当脚本认为参数变量中会有数据而实际上并没有时,脚...
(Skip over that material if your eyes start to glaze over; you can always come back.) 由于每个层次往往是独立的,可以使用许多不同组合的组件构建网络。 这就是网络配置可能变得非常复杂的地方。 因此,我们将从非常简单的网络中的层次开始本章的学习。 你将学习如何查看自己的网络设置,当你理解每个层次的...
Creating Colorful Shell Script Script 3: Encrypt a File or Directory The “Encrypt.sh” script is a Bash script designed to provide a simple interface forencrypting a file using the GnuPG(GPG) encryption tool. The script welcomes the user and prompts them to enter the exact filename, includi...