Mac shell script if then else

Asked 8 years, 7 months ago. Active 8 years, 7 months ago.

Bash While Loop Examples

Viewed 5k times. JShoe JShoe 7 7 gold badges 23 23 silver badges 39 39 bronze badges.

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  • Bash: if, then, else, and expressions.

Didn't you want all values converted to their key codes? Or just 1?

Sample bash script to show how to parse the macOS version ยท GitHub

To others, FYI: This is a question following this other topic. JShoe: I think you need to explain more fully what you want to do here. Is there a way to convert them to their key codes?

Bash Tutorial 3: If Then Else Elif

I'm only working with in the program I'm making. Do you mean 0?

Well yeah, but the input of my program is It's going to open tabs in firefox. Cool thanks.

The if Statement

Also, what's "fi"? Do I need "foo as text"? This example is for when you add it directly to the end of the previous script. Or do you want to pipe the output of one AppleScript into another using bash, when you can just append one to the other? Replace any return with set foo to in the dialog script and it should work. In Bash, you can use the test command to check whether a file exists and determine the type of the file.

How to Compare Numbers, Strings and Files in Bash Shell Script

If you want your script to be portable you should prefer using the old test [ command which is available on all POSIX shells. The new upgraded version of the test command [[ double brackets is supported on most modern systems using Bash, Zsh, and Ksh as a default shell. When checking if a file exists, the most commonly used FILE operators are -e and -f.

The first one will check whether a file exists regardless of the type, while the second one will return true only if the FILE is a regular file not a directory or a device.

The most readable option when checking whether a file exist or not is to use the test command in combination with the if statement. You can also use the test command without the if statement.

You can also use the double brackets [[ instead of a single one [. Similar to many other languages, the test expression can be negated using the! Equivalent variants without using the IF statement:.