We're using fuser to check first that some process already has the pipe open to alleviate that but that's not foolproof as fuser may not be able to check all processes. Now, so far we've only been considering the size of the primary data associated with the files.
That doesn't take into account the size of the metadata and all the supporting infrastructure needed to store that file. That doesn't include the inode itself, or the entries in the directories the file is linked to.
Size and disk usage are not necessarily tightly related as compression, sparseness sometimes some metadata , extra infrastructure like indirect blocks in some filesystems have an influence on the latter. That's typically what du uses to report disk usage. Most of the commands listed above will be able to get you that information.
The file size shows the number of bytes. It is the apparent size, which is the bytes the file uses on a typical disk, without special compression, or special sparse areas, or unallocated blocks, etc. The file size in the fifth column, and is displayed in bytes. In the example below, the filesize is just under 2KB:. I found an AWK 1 liner, and it had a bug but I fixed it.
I also added in PetaBytes after TeraBytes. Considering stat is not on every single system, you can almost always use the AWK solution.
Example; the Raspberry Pi does not have stat but it does have awk. I like the wc option myself. Paired with 'bc,' you can get decimals to as many places as you please. I was looking to improve a script I had that awk'ed out the 'file size' column of an 'ls -alh' command. I didn't want just integer file sizes, and two decimals seemed to suit, so after reading this discussion, I came up with the code below.
My script is called gpfl , for "get picture file length. I don't know how this rates as an "answer," as it borrows much from what's already been offered and discussed. So I'll leave it there.
Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. How can I get the size of a file in a bash script? Ask Question. Asked 10 years, 6 months ago. Active 1 month ago. Viewed k times. How do I assign this to a bash variable so I can use it later? Please use ide. Load Comments. What's New. Most popular in Linux-Unix. More related articles in Linux-Unix.
We use cookies to ensure you have the best browsing experience on our website. Start Your Coding Journey Now! Login Register. I have also shown how we can check file size using PowerShell from folders and subfolders. I have also shown how to Check file size gt 0 in PowerShell. Also, we saw how can we check folder size using PowerShell command. I am Bijay from Odisha, India. Something to be careful of is that most of the formatting examples you are showing will result in a string.
This means if you are using your techniques in a pipelined expression and pipe output to something like Sort-Object, the sort will be on the string which may not be accurate. Please log in again. The login page will open in a new tab.
After logging in you can close it and return to this page. Table of Contents show. Connect and share knowledge within a single location that is structured and easy to search. If you are worried about syntax issues in your script, use shellcheck to syntax check your scripts and fix the errors as seen from it. As a general coding practice lowercase user-defined variables in bash to avoid confusing them with the special Environment variables which are interpreted for different purposes by the shell e.
Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. How to check if a file's size is greater than a certain value in Bash Ask Question.
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