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Created page with "= Things you need to know = == Terminal vs script file == A shell script is nothing more than a sequence of shell commands. Any command you put in a shell script can be exec..."
= Things you need to know =
== Terminal vs script file ==
A shell script is nothing more than a sequence of shell commands. Any command you put in a shell script can be executed just as well in a terminal. In fact no matter how complex your script is - you can run the entire thing from a terminal window without executing the script.
== Runnning a command ==
* How to run a command in the current directory or another directory or a directory in the $PATH
* That programs you run need to have execute permission
* What your $PWD is, pwd command
* Check the return code from a command by examining $?
== Variables ==
* How to create a variable and set a value in it
* How to get the value from a variable
== Quotes ==
* Why use single or double quotes
* The difference between single and double quotes
* Backquotes
== Redirecting output ==
* How to redirect output from a command to a file
* How to pipe output from one command to another command
= Exercises =
== Terminal vs script file ==
A shell script is nothing more than a sequence of shell commands. Any command you put in a shell script can be executed just as well in a terminal. In fact no matter how complex your script is - you can run the entire thing from a terminal window without executing the script.
== Runnning a command ==
* How to run a command in the current directory or another directory or a directory in the $PATH
* That programs you run need to have execute permission
* What your $PWD is, pwd command
* Check the return code from a command by examining $?
== Variables ==
* How to create a variable and set a value in it
* How to get the value from a variable
== Quotes ==
* Why use single or double quotes
* The difference between single and double quotes
* Backquotes
== Redirecting output ==
* How to redirect output from a command to a file
* How to pipe output from one command to another command
= Exercises =
