I need a command that retrieves the last modified date and another that gives the size of a file.
I've looked everywhere, and I cannot find commands like this.
LS will not work.
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The most common command for this is
stat(1). Some variants, notably GNU stat, allow specification of the output format, which simplifies parsing.
$ stat t.txt File: ‘t.txt’ Size: 48 Blocks: 8 IO Block: 4096 regular file Device: fd00h/64768d Inode: 7078223 Links: 1 Access: (0664/-rw-rw-r--) Uid: ( 500/ ignacio) Gid: ( 500/ ignacio) Context: unconfined_u:object_r:user_home_t:s0 Access: 2013-06-25 09:04:32.600422989 -0400 Modify: 2013-06-24 00:10:57.925679368 -0400 Change: 2013-06-24 00:10:57.970679307 -0400 Birth: -