code: mafs

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updated documentation with more commands

--- a/docs/mafs.ms

+++ b/docs/mafs.ms

@@ -1221,8 +1221,40 @@

 .sp

 	disk/find  disk.file blocknumber

 .sp

+.ne 5

+Build the list of free blocks.

 .sp

-.ne 6

+.nf

+	disk/used /dev/sdF1/fs > used.blocks

+	sort -n used.blocks -o used.blocks.sorted

+	disk/unused used.blocks.sorted 11721040049 # 11721040049 is the total number of disk blocks

+.fi

+.sp

+.ne 3

+Find the total number of blocks on a disk.

+.sp

+.nf

+	dd -if /dev/sdF1/fs -bs 512 -iseek 1 -count 1 -quiet 1 | awk '$1 == "nblocks" { print $2 }'

+.fi

+.sp

+.ne 5

+Change /adm/frees.

+.sp

+.nf

+	disk/unused <{disk/used tests/test.0/disk} 32 | tr -d '	' > unused.blocks

+	# cat unused.blocks

+	disk/updatefrees tests/test.0/disk unused.blocks

+.fi

+.sp

+.ne 5

+A test of disk/used, disk/unused and disk/free programs. $nblocks is the total number of disk blocks. $disk is the disk.

+.sp

+.nf

+	diff <{disk/unused -l <{disk/used $disk} $nblocks}} <{disk/free $disk}

+.fi

+.sp

+.sp

+.ne 20

 .ft B

 Tests

 .ft R

@@ -1314,6 +1346,7 @@

 .fi

 .sp

 .sp

+.ne 3

 .ft B

 Limitations

 .ft R

binary files a/docs/mafs.pdf b/docs/mafs.pdf differ