%META:TOPICINFO{author="ChrisBartram" date="1170383848" format="1.1" version="1.2"}%
%META:TOPICPARENT{name="Hp3000PosixShell"}%
---+ [[Hp3000MpeToPosixCommands][Some HP3000 MPE commands and their POSIX equivalents]]

(Thanks to ChrisRice From the 4.5 class on the original list - now expanded (thanks JeffVance) to include new 5.0 commands ) 

<pre>
ABORTJOB        kill
ALTACCT         chmod
ALTGROUP        chmod
ALTFILE         chown
ALTSEC          chmod
BYE             exit
CALC            expr, bc
CCXL            c89
CCXLLK          c89
CHGROUP         cd
CHDIR           cd
CI              sh
CI              callci
COPY            cp
DISALLOW        chmod
DO              r
ECHO            echo
EDITOR          vi
ELSE            else
ELSEIF          else if
ENDIF           fi
ENDWHILE        done
EXIT            exit
FCOPY           cp, dd, lp
FILE            ln
HELP            help, man
HPDESK          mailx
HPSEARCH        grep
IF              if
LINK            c89
LISTACCT        ls -l
LISTEQ          ls -l
LISTFILE        ls
LISTFILE;name=  find
LISTGROUP       ls -l
LISTREDO        history
NEWACCT         mkdir
NEWDIR          mkdir
NEWLINK         ln -s
NEWGROUP        mkdir
PRINT           more, cat
PURGE           rm
PURGEACCT       rmdir, rm
PURGEDIR        rmdir, rm
PURGELINK       rm
PURGEGROUP      rmdir, rm
REDO            r
RELEASE         chmod 777
RENAME          mv
REPORT,DISKUSE  du, df, find
RESTORE         tar, cpio, pax
RETURN          break ??
SECURE          chmod
SET             set
SETDUMP         set -x
SETJCW          =
SETMSG          mesg
SETVAR          =
SHOWJCW         echo
SHOWJOB         ps, who
SHOWPROC              ps
SHOWME          who am I, pwd, uname
SHOWTIME        date
SHOWVAR @       set
STORE           tar, cpio, pax
STREAM          at, batch, bg, crontab
TELL            talk, write, mailx
WARN            talk, write, mailx, wall
XEQ             . ??
</pre>

I see two meanings for the FILE command: 1) Used to convert between different file types. This has no meaning in the POSIX context because the POSIX context really only understands one filetype - "bytestream". 2) Used to associate one filesystem name to another filesystem name. This can be done with the link (ln) command. 

  --[[MikeBerkowitz]]


MPE: FILE DUMMY=DUMMY2          POSIX:   ln -s DUMMY2 DUMMY

(note: this will place an actual file on the drive, e.g. a permanent file equation so to speak. This is Posix symbolic linking of files.) 

There is no reason you have to execute these commands from the posix shell. E.g., LS.HPBIN.SYS "-al" works just fine from the CI; same as: "ls -al" does from the Posix shell. 

banner.hpbin.sys ":^)" 

  --[[DanHollis]]

<pre>
WELCOME                 vi /etc/motd
HELLO;TERM=             export TERM=
CCXLLK is sort of       make
option logon;system     /etc/profile
option logon            ./.profile
SET HPPATH=             export PATH=
</pre>

And I love the "hot" program replacement in the shell. Who cares if people are running the program. "rm program". "mv newprog program" new version is in. 

  --[[JeffKell]]


Take care with this last part. I did the following: 

<pre>
:BUILD OLDFILE;REC=-80,,F,ASCII
:LN.HPBIN.SYS "-s ./OLDFILE ./NEWFILE"
:LISTF ???FILE,2
ACCOUNT=  TELAMON     GROUP=  RANDY
FILENAME  CODE  ------------LOGICAL RECORD-----------
                  SIZE  TYP        EOF      LIMIT R/B
NEWFILE             1B  BAL          9       1024   1
OLDFILE            80B  FA           0       1023   3

:PURGE NEWFILE
:LISTF ???FILE,2

 NEWFILE             1B  BAL          9       1024   1

:LS.HPBIN.SYS "-l ./NEWFILE"

 lrwxrwxrwx   1 MANAGER.SYS TELAMON 9 May 23 13:43 ./NEWFILE -> ./OLDFILE
</pre>

Notice that the PURGE deleted _OLDFILE_, not NEWFILE, although the link of NEWFILE -> OLDFILE still remained. If you build a link using LN.HPBIN.SYS, you'll have to get rid of it using RM.HPBIN.SYS, _not_ PURGE. 

  --[[RandyMedd]]

This is a distinction between PURGE and PURGELINK in the CI, and is an important concept for MPE users to understand. If you :PURGE a link, it is like saying :PURGE *FILE, where FILE references a previous file equation. The file on the right side of the file equation will be purged. 

If you want to get rid of the link, use :PURGELINK NEWFILE in the CI. At the 1994 Interex in Denver, I did a paper called "A System Manager's Look at MPE/iX 5.0", which covered some MPE/POSIX topics like this. I tried to explain POSIX things in MPE/iX terms. I wrote it for someone who is trying to understand POSIX-style concepts from an MPE/iX knowledge base. It is paper #8008 in the proceedings from that conference. 

  --[[KevinCooper]]



-- Main.ChrisBartram - 09 Jun 2006