Array of files in bash

Any variable declared in bash can be treated as an array. Use the around the values to declare an array. Note instead of two files, we just got "file1", To loop through the array use index that means all. Lets try again. Checkout the difference, now all the files are part of index 0 array. Dennis Williamson Dennis Williamson k 87 87 gold badges silver badges bronze badges. Thanks, Is there anyway I can pipe the results of these?

You can also append filenames to an array, output filenames and loop through them. Agreed, I just wanted to tell how to create an array from some command output.

However I edited my answer to stress that ls output should be avoided. When the array expansion is not quoted, all elements of the array are represented as a string, rather than individual elements of the array. Or if you want to leave it, please explicitly add a mention like don't do this, it's broken. In bash you can create an array of filenames with pathname expansion globbing like so:!

Josh Habdas Josh Habdas 7, 2 2 gold badges 56 56 silver badges 62 62 bronze badges. Not for me. And the default Bash on MacOS is 3. On my Mac, in Sierra with Bash 3. If I run Bash 4. The latter is clearly recursive and the former is not. BTW, shopt is defined, but I presume you mean globstar in Bash 3. Try type -a shopt to show where shopt is coming from and shopt by itself to show the settings of all your options.

My counts are in the neighborhood of This worked for my need to upload files to multiple FTP targets. I dont understand, for me it works only for the very first item in the main array and not for the next rows Any idea why that might be? Bash has no support for multidimensional arrays.

Nux Nux 7, 5 5 gold badges 49 49 silver badges 66 66 bronze badges. Ignoring that advice and moving right along: My use cases usually involve lists of lists or arrays of arrays and looping over them. You could make use of de referencing arrays like in this script:! Community Bot 1 1 1 silver badge.

This script demonstrates an array of arrays:! This allows functions to return arrays as strings. Works for arrays and associative arrays.

Spaces and odd characters are all handled by bash declare. Usage: stringify variableName variableName - Name of the array variable e. Returns prints the stringified version of the array. Actually this prints the declare command to form the new array.

You need to call eval with the result to make the array. Steve Zobell Steve Zobell 9 9 silver badges 12 12 bronze badges. The Overflow Blog. Table of Contents. Arrays to the rescue! Accessing array elements in bash The first element of an array starts at index 0 and so to access the nth element of array you use the n -1 index. You can also delete the whole num array in the same way: unset num Creating hybrid arrays with different data types In bash, unlike many other programming languages, you can create an array that contains different data types.

Isn't that awesome? Bash Beginner Series. Send login link. Check your inbox and click the link. Sorry, something went wrong.