I ran the command and a few others in that vein just so you'd see the outputs in case it helps.
Also, I don't know why I have so many disk images right now or what to do about them, but they weren't there before
-bash-3.2# diskutil list
/dev/disk0 (internal):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme 1.0 TB disk0
1: EFI EFI 314.6 MB disk0s1
2: Apple_APFS Container disk2 999.6 GB disk0s2
/dev/disk1 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme +2.1 GB disk1
1: Apple_HFS OS X Base System 2.0 GB disk1s1
/dev/disk2 (synthesized):
#: TYPE NAME SIZE IDENTIFIER
0: APFS Container Scheme - +999.6 GB disk2
Physical Store disk0s2
1: APFS Volume Macintosh HD 494.0 GB disk2s1
2: APFS Volume Preboot 21.8 MB disk2s2
3: APFS Volume Recovery 517.8 MB disk2s3
4: APFS Volume VM 3.2 GB disk2s4
/dev/disk3 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +5.2 MB disk3
/dev/disk4 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +524.3 KB disk4
/dev/disk5 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +524.3 KB disk5
/dev/disk6 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +524.3 KB disk6
/dev/disk7 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +2.1 MB disk7
/dev/disk8 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +524.3 KB disk8
/dev/disk9 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +524.3 KB disk9
/dev/disk10 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +12.6 MB disk10
/dev/disk11 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +4.2 MB disk11
/dev/disk12 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +1.0 MB disk12
/dev/disk13 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +2.1 MB disk13
/dev/disk14 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +524.3 KB disk14
/dev/disk15 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +524.3 KB disk15
/dev/disk16 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +1.0 MB disk16
/dev/disk17 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +6.3 MB disk17
/dev/disk18 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +6.3 MB disk18
/dev/disk19 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +524.3 KB disk19
/dev/disk20 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +2.1 MB disk20
-bash-3.2# fsck -f -y /dev/disk2
fsck usage: fsck [-fdnypq] [-l number]
-bash-3.2# fsck
** /dev/rdisk1s1
** Root file system
Executing fsck_hfs (version hfs-407.50.6).
** Checking non-journaled HFS Plus Volume.
The volume name is OS X Base System
** Checking extents overflow file.
** Checking catalog file.
** Checking multi-linked files.
** Checking catalog hierarchy.
** Checking extended attributes file.
** Checking volume bitmap.
** Checking volume information.
** The volume OS X Base System appears to be OK.
-bash-3.2# fsck -f -y /dev/disk1
fsck usage: fsck [-fdnypq] [-l number]
-bash-3.2#