1
0
mirror of https://github.com/DoctorWkt/pdp7-unix.git synced 2026-02-26 17:03:40 +00:00

I've converted all the man pages so far into roff format.

This commit is contained in:
Warren Toomey
2016-03-28 13:24:27 +10:00
parent dfb61a274f
commit fed6525853
9 changed files with 344 additions and 293 deletions

View File

@@ -1,26 +1,38 @@
11/3/70 CHRM (I)
NAME chrm -- remove (unlink) files
SYNOPSIS chrm directory name1 ...
DESCRIPTION chrm removes the entries for one or more files from the
named directory. If an entry was the last link to the file,
the file is destroyed. Removal of a file requires write
permission in its directory, but neither read nor write
permission on the file itself.
Directories cannot be removed by rm; cf. rmdir.
FILES none.
SEE ALSO rmdir, for removing directories.
DIAGNOSTICS If the file cannot be removed or does not exist, the name
of the file followed by a question mark is typed.
BUGS rm probably should ask whether a read-only file is really
to be removed.
OWNER ken, dmr
.oh '11/3/70''CHRM(I)'
.ta 18 21
NAME chrm -- remove (unlink) files
.sp
SYNOPSIS
.ul
chrm
directory name1 ...
.sp
DESCRIPTION
.ul
chrm
removes the entries for one or more files
from the named directory. If an entry was the
last link to the file, the file is destroyed.
Removal of a file requires write permission in
its directory, but neither read nor write
permission on the file itself.
.sp
Directories cannot be removed by
.ul
chrm.
.sp
FILES --
.sp
SEE ALSO --
.sp
DIAGNOSTICS If the file cannot be removed or does not exist,
the name of the file followed by a question mark
is typed.
.sp
BUGS
.ul
chrm
probably should ask whether a read-only
file is really to be removed.
.sp
OWNER ken, dmr

View File

@@ -1,23 +1,25 @@
11/3/70 CP (I)
NAME cp -- copy
SYNOPSIS cp file11 file12 file21 file22 ...
DESCRIPTION Files are taken in pairs; the first is opened for reading,
the second created mode 17. Then the first is copied into
the second.
FILES
SEE ALSO cat, pr
DIAGNOSTICS Error returns are checked at every system call, and
appropriate diagnostics are produced.
BUGS The second file should be created in the mode of the first.
A directory convention as used in mv should be adopted to cp.
OWNER ken, dmr
.oh '11/3/70''CP(I)'
.ta 18 21
NAME cp -- copy
.sp
SYNOPSIS
.ul
cp
file11 file12 file21 file22 ...
.sp
DESCRIPTION Files are taken in pairs; the first is opened
for reading, the second created mode 17. Then
the first is copied into the second.
.sp
FILES --
.sp
SEE ALSO cat, pr
.sp
DIAGNOSTICS Error returns are checked at every system call,
and appropriate diagnostics are produced.
.sp
BUGS The second file should be created in the mode of
the first. A directory convention as used in mv
should be adopted to cp.
.sp
OWNER ken, dmr

View File

@@ -1,19 +1,20 @@
11/3/70 DATE (I)
NAME date - print the date
SYNOPSIS date
DESCRIPTION The current date is printed to the second.
FILES
SEE ALSO
DIAGNOSTICS It is always 1970.
BUGS
OWNER wkt
.oh '11/3/70''DATE(I)'
.ta 18 21
NAME date - print the date
.sp
SYNOPSIS
.ul
date
.sp
DESCRIPTION The current date is printed to the second.
.sp
FILES --
.sp
SEE ALSO --
.sp
DIAGNOSTICS --
.sp
BUGS It is always 1970.
.sp
OWNER wkt

View File

@@ -1,34 +1,36 @@
11/3/70 DIRECTORY (V)
NAME format of directories
SYNOPSIS
DESCRIPTION A directory behaves exactly like an ordinary file, save
that no user may write into a directory. The fact that a
file is a directory is indicated by a bit in the flag word
of its i-node entry.
Directory entries are 8 words long. The first word is the
i-node of the file represented by the entry, if non-zero;
if zero, the entry is empty.
Words 1-4 represent the (8-character) file name, space
padded on the right. These words are not necessarily
cleared for empty slots.
By convention, the first entry in each directory is
for "dd", which is the "directory directory" that holds
all the users' home directories and the "system" directory.
The "system" directory contains "init" and "sh".
FILES
SEE ALSO file system format
DIAGNOSTICS
BUGS
OWNER ken, dmr
.oh '11/3/70''DIRECTORY(I)'
.ta 18 21
NAME format of directories
.sp
SYNOPSIS --
.sp
DESCRIPTION A directory behaves exactly like an ordinary
file, save that no user may write into a
directory. The fact that a file is a directory
is indicated by a bit in the flag word of its
i-node entry.
.sp
Directory entries are 8 words long. The first
word is the i-node of the file represented by
the entry, if non-zero; if zero, the entry is
empty.
.sp
Words 1-4 represent the (8-character) file name,
space padded on the right. These words are not
necessarily cleared for empty slots.
.sp
By convention, the first entry in each directory
is for "dd", which is the "directory directory"
that holds all the users' home directories and
the "system" directory. The "system" directory
contains "init" and "sh".
.sp
FILES --
.sp
SEE ALSO file system format
.sp
DIAGNOSTICS --
.sp
BUGS --
.sp
OWNER ken, dmr

View File

@@ -1,104 +1,119 @@
11/3/70 FILE SYSTEM (V)
NAME format of file system
SYNOPSIS
DESCRIPTION The RB09 fixed head disk has 8,000 64-word blocks on
each of its two surfaces. Unix uses the second surface
(physical blocks 8,000 to 15,999) and numbers them
from logical block 0 to logical block 7,999. The following
discussion refers to logical blocks.
The Unix filesystem is divided into 8,000 blocks of 64 words
per block. Block 0 is the "sysdata" block. The first word
points to the first block of the free-storage map. Each block
in the free-storage map is structured as follows: the first
word is the block number of the next block in the free-storage
map, or zero if this is the end of the free-storage map. The
next nine words hold free block numbers, or zero (no block number).
Block 1 on the filesystem is unused. (?)
I-numbers begin at 1, and the storage for i-nodes begins at
block 2. Blocks 2 to 711 contain the i-nodes, with five
consecutive i-nodes per block. Certain i-nodes are reserved for
special files, directories and devices:
1 The core file written by "sys save" or a bad system call
2 The "dd" directory directory
3 The "system" directory
6 The "ttyin" special file
7 The "keyboard" (graphic-2) special file
8 The "pptin" (paper tape reader) special file
10 The "ttyout" special file
11 The "display" (graphic-2) special file
12 The "pptout" (paper tape punch) special file
There is only one file system which is always mounted;
it resides on the RB disk. This device is also used for
swapping. The swap areas are at the high blocks on this device:
blocks 6,400 to 7,999. These blocks do not appear in the free list.
Each i-node represents one file. The format of
an i-node is as follows, where the left column represents
the offset in words from the beginning of the i-node:
0 flags (see below)
1 first indirect block or contents block
...
7 seventh indirect block or contents block
8 user ID of owner
9 link count
10 size in words
11 unique value assigned at creation
The flags are as follows:
400000 i-node is allocated
200000 large file
?????? allocated bit (always on)
000040 special file
000020 directory
000010 read, owner
000004 write, owner
000002 read, non-owner
000001 write, non-owner
The allocated bit (flag ??????) is believed even if the i-node
map says the i-node is free; thus corruption of the map may
cause i-nodes to become unallocatable, but will not cause active
nodes to be reused.
Word number n of a file is accessed as follows: n is
divided by 64 to find its logical block number (say b) in
the file. If the file is small (flag 200000 is 0), then b
must be less than 7, and the physical block number corresponding
to b is the bth entry in the address portion of the i-node.
If the file is large, b is divided by 64 to yield a number
which must be less than 8 (or the file is too large for
UNIX to handle). The corresponding slot in the i-node
address portion gives the physical block number of an
indirect block. The residue mod 64 gives a word offset
in the indirect block, and the word found there is the
physical address of the block corresponding to b.
If block b in a file exists, it is not necessary that all
blocks less than b exist. A zero block number either in the
address words of the i-node or in an indirect block
indicates that the corresponding block has never been
allocated. Such a missing block reads as if it contained
all zero words.
FILES
SEE ALSO format of directories
DIAGNOSTICS
BUGS
OWNER
.oh '11/3/70''FILE SYSTEM(V)'
.ta 18 21 24
NAME format of file system
.sp
SYNOPSIS --
.sp
DESCRIPTION The RB09 fixed head disk has 8,000 64-word
blocks on each of its two surfaces. Unix uses
the second surface (physical blocks 8,000 to
15,999) and numbers them from logical block 0 to
logical block 7,999. The following discussion
refers to logical blocks.
.sp
The Unix filesystem is divided into 8,000 blocks
of 64 words per block. Block 0 is the "sysdata"
block. The first word points to the first block
of the free-storage map. Each block in the
free-storage map is structured as follows: the
first word is the block number of the next block
in the free-storage map, or zero if this is the
end of the free-storage map. The next nine words
hold free block numbers, or zero (no block
number).
.sp
Block 1 on the filesystem is unused. (?)
.sp
I-numbers begin at 1, and the storage for
i-nodes begins at block 2. Blocks 2 to 711
contain the i-nodes, with five consecutive
i-nodes per block. Certain i-nodes are reserved
for special files, directories and devices:
.sp
1 The core file written by "sys save" or a
bad system call
2 The "dd" directory directory
3 The "system" directory
6 The "ttyin" special file
7 The "keyboard" (graphic-2) special file
8 The "pptin" (paper tape reader) special
file
10 The "ttyout" special file
11 The "display" (graphic-2) special file
12 The "pptout" (paper tape punch) special
file
.sp
There is only one file system which is always
mounted; it resides on the RB disk. This device
is also used for swapping. The swap areas are at
the high blocks on this device: blocks 6,400 to
7,999. These blocks do not appear in the free
list.
.sp
Each i-node represents one file. The format of
an i-node is as follows, where the left column
represents the offset in words from the
beginning of the i-node:
.sp
0 flags (see below)
1 first indirect block or contents block
...
7 seventh indirect block or contents block
8 user ID of owner
9 link count
10 size in words
11 unique value assigned at creation
.sp
The flags are as follows:
.sp
400000 i-node is allocated
200000 large file
?????? allocated bit (always on)
000040 special file
000020 directory
000010 read, owner
000004 write, owner
000002 read, non-owner
000001 write, non-owner
.sp
The allocated bit (flag ??????) is believed even
if the i-node map says the i-node is free; thus
corruption of the map may cause i-nodes to
become unallocatable, but will not cause active
nodes to be reused.
.sp
Word number n of a file is accessed as follows:
n is divided by 64 to find its logical block
number (say b) in the file. If the file is small
(flag 200000 is 0), then b must be less than 7,
and the physical block number corresponding to b
is the bth entry in the address portion of the
i-node.
.sp
If the file is large, b is divided by 64 to
yield a number which must be less than 8 (or
the file is too large for UNIX to handle).
The corresponding slot in the i-node address
portion gives the physical block number of an
indirect block. The residue mod 64 gives a
word offset in the indirect block, and the
word found there is the physical address of
the block corresponding to b.
.sp
If block b in a file exists, it is not necessary
that all blocks less than b exist. A zero block
number either in the address words of the i-node
or in an indirect block indicates that the
corresponding block has never been allocated.
Such a missing block reads as if it contained
all zero words.
.sp
FILES --
.sp
SEE ALSO format of directories
.sp
DIAGNOSTICS --
.sp
BUGS --
.sp
OWNER ken

View File

@@ -1,19 +1,21 @@
11/3/70 LN (I)
NAME ln -- link to a file
SYNOPSIS ln name1 name2
DESCRIPTION ln adds another filename to the first filename
FILES
SEE ALSO
DIAGNOSTICS "twofiles" - please provide two filenames
"? file" - unable to make the link
BUGS
OWNER wkt
.oh '11/3/70''LN(I)'
.ta 18 30
NAME ln -- link to a file
.sp
SYNOPSIS
.ul
ln
name1 name2
.sp
DESCRIPTION ln adds another filename to the first filename
.sp
FILES --
.sp
SEE ALSO --
.sp
DIAGNOSTICS "twofiles" - please provide two filenames
"? file" - unable to make the link
.sp
BUGS --
.sp
OWNER wkt

View File

@@ -1,19 +1,26 @@
11/3/70 MV (I)
NAME mv -- move or rename a file
SYNOPSIS mv name1 name2
DESCRIPTION mv changes the name of name with the rename system call.
FILES
SEE ALSO
DIAGNOSTICS "twofiles" - please provide two filenames
"? file" - either unable to remove or create a file
BUGS The second diagnostic is ambiguous.
OWNER wkt
.oh '11/3/70''MV(I)'
.ta 18 31
NAME mv -- move or rename a file
.sp
SYNOPSIS
.ul
mv
name1 name2
.sp
DESCRIPTION
.ul
mv
changes the name of name with the rename
system call.
.sp
FILES --
.sp
SEE ALSO --
.sp
DIAGNOSTICS "twofiles" - please provide two filenames
"? file" - either unable to remove or create
a file
.sp
BUGS The second diagnostic is ambiguous.
.sp
OWNER wkt

View File

@@ -1,50 +1,58 @@
11/3/70 STAT (I)
NAME stat - get file status
SYNOPSIS stat name
DESCRIPTION stat gives several kinds of information about one file:
files:
access mode
number of links
owner
size in words
name
All information is self-explanatory except the mode. The
mode is a five-character string whose characters mean the
following:
1 s: file is small (smaller than 4096 words)
l: file is large
d: file is a directory
2 r: owner can read
-: owner cannot read
3 w: owner can write
-: owner cannot write
4 r: non-owner can read
-: non-owner cannot read
5 w: non-owner can write
-: non-owner cannot write
All numeric values are printed in octal
if he cannot be found in "/etc/uids" a number is given.
FILES
SEE ALSO ls with the -l option gives the same information as stat,
except that it also shows the i-node number for each file.
DIAGNOSTICS "name ?" for any error. "nofiles" if no file name is given.
BUGS none
OWNER wkt
.oh '11/3/70''STAT(I)'
.ta 18 21
NAME stat - get file status
.sp
SYNOPSIS
.ul
stat
name
.sp
DESCRIPTION stat gives several kinds of information about
one file:
.sp
access mode
number of links
owner
size in words
name
.sp
All information is self-explanatory except the
mode. The mode is a five-character string whose
characters mean the following:
.sp
1 s: file is small (smaller than 4096 words)
l: file is large
d: file is a directory
.sp
2 r: owner can read
-: owner cannot read
.sp
3 w: owner can write
-: owner cannot write
.sp
4 r: non-owner can read
-: non-owner cannot read
.sp
5 w: non-owner can write
-: non-owner cannot write
.sp
All numeric values are printed in octal.
.sp
FILES
.sp
SEE ALSO
.ul
ls
with the -l option gives the same information
as
.ul
stat,
except that it also shows the i-node
number for each file.
.sp
DIAGNOSTICS "name ?" for any error.
"nofiles" if no file name is given.
.sp
BUGS none
.sp
OWNER wkt

View File

@@ -43,6 +43,7 @@ int o_ll = 65, o_ad = 1, o_po = 0, o_ls = 1, o_ig = 0, o_fi = 1;
int o_pl = 66, o_ro = 0, o_hx = 0, o_sp = 0, o_sk = 0;
int o_ce = 0, o_ul = 0;
int o_li = 0, o_bp = -1, o_hy = 1;
int o_m2 = 1;
int o_nn = 0; /* #LINES TO SUPPRESS NUMBERING */
int o_ti = -1; /* TEMPORARY INDENT */
int page_no = -1;
@@ -779,6 +780,7 @@ void beginpage()
{
int i;
writetitle(page_no & 1 ? ohead : ehead);
for (i = 0; i < o_m2; i++) spit('\n');
line_no = 0;
}