按值传递(call by value)是最常用的求值策略:函数的形参是被调用时所传实参的副本。修改形参的值并不会影响实参。 按引用传递(call by reference)时,函数的形参接收实参的隐式引用,而不再是副本。这意味着函数形参的值如果被修改,实参也会被修改。同时两者指向相同的值。按值传递由于每次都需要克隆副本,对一些...
Warning: Call-time pass-by-reference has been deprecated解决方法 IIS7.5通过web.config设置301重定向 centos7下/etc/rc.local 开机不执行的问题 CentOS 6.0 VNC远程桌面配置方法 禁止root远程登录centos(启用sudo) 让CentOS时间同步的方法 win2003下挂载磁盘 修改mysql的远程登陆root密码 MySQL报错ERROR 1186 (HY000...
etc, etc. An array of all of the arguments passed to your script is stored in$@, and we’ll discuss how to handle arrays later on in this chapter. The total number of arguments passed to your script is stored in$#. Now that you know how to pass arguments to your scripts you ...
# Reference: This was copied from <http://www.linuxcommand.org/wss0150.php>PROGNAME=$(basename $0)function error_exit{# ---# Function for exit due to fatal program error# Accepts 1 argument:# string containing descriptive error message# --- echo"${PROGNAME}: ...
Documentation / Reference bash help function Copy Bash Download http://mywiki.wooledge.org/BashFAQ/084 Discover More Bash - Complete (Builtin command) - Completion The programmable completion feature in Bash permits typing a partial command, then pressing the [Tab] key to auto-complete the ...
Warning: Call-time pass-by-reference has been deprecated解决方法 IIS7.5通过web.config设置301重定向 centos7下/etc/rc.local 开机不执行的问题 CentOS 6.0 VNC远程桌面配置方法 禁止root远程登录centos(启用sudo) 让CentOS时间同步的方法 win2003下挂载磁盘 修改mysql的远程登陆root密码 MySQL报错ERROR 1186 (HY000...
GNU Bash Reference Manual: This is the official documentation for the bash shell. It’s a comprehensive resource that covers all aspects of bash, including the eval command. Bash Guide for Beginners: This guide provides a gentle introduction to bash scripting. It’s a great resource for beginne...
aws_ecr_tag_image_by_digest.sh - same as above but tags an ECR image found via digest (more accurate as reference by existing tag can be a moving target). Useful to recover images that have become untagged aws_ecr_tag_latest.sh - tags a given ECR docker image:tag as latest without ...
used by some commands, as indicated. COMMANDS In the following descriptions, ^X means control-X. ESC stands for the ESCAPE key; for example ESC-v means the two character sequence "ESCAPE", then "v". h or H Help: display a summary of these commands. If you forget all the other comman...
Bash Reference Manual ##Apart from that, you can download this free book to learn more bash stuff that is not covered here: Download Bash Beginner Guide Once you have enough knowledge of the bash basics, you can learn advanced bash scripting with this free book: ...