OpenVMS Commands with unix equivalents

Ok, Lets start w/ VMS here's a useful list of VMS / Unix equivalency commands

APPEND

cat concatenates files. If contents of file1 need to be placed at the end of file2 issue the following unix command.cat file1 >> file2

x=,x:=

= (Bourne and Korn) , set (C shell)

x==,x:==

same as = followed by export

ASSIGN,DEFINE

if file,directory alias definition: ln , ln -s hard and soft links

DEFINE

variable definitions (no real equivalent!)

DIRECTORY

ls

ATTACH

fg

BACKUP

tar or pax : back up files into a tar file.

/INIT

tar -c or pax : Restore files.

/LIST

tar -t : List contents.

/LOG

tar -v : Report progress.

/NOREWIND

tar -r : Write at end of existing backup (tar) files.

/RECORD

tar -m : Update file's modification date upon restore.

COPY

cp : Copy a file

COPY

ftp : Copy to/from a nontrusted remote host.

COPY

rcp : Copy to/from a trusted remote host.

COPY/CONFIRM

cp -i : Confirm before copying.

CREATE

touch : Create or update a file.

CREATE/DIRECTORY

mkdir : Create a subdirectory.

CREATE filename

cat <

CREATE filename

cat

DEBUG

dbx : Debug a program.

DELETE

rm : Delete a file.

/CONFIRM

rm -i : Confirm deletion.

/ENTRY

lprm : Remove queued line printer job.

/QUEUE

lprm -P : Remove all jobs from the queue.

/LOG

rm -e : Delete files and list them as they are deleted.

/SYMBOL

unset : Get rid of an environment variable.

DELETE

rmdir : Delete an empty subdirectory.

DIFFERENCES

diff : Display all differences in files or directories.

DIFF/MAXIMUM_DIFF=1

cmp : Display first difference in two files (typically used with binary files).

DIFF/NUMBER NL:

cat -n : Display a file with line numbers.

DIFF/SLP

diff - e : Generate editing changes for the ed editor.

DIRECTORY [...]

ls -R : Do a recursive directory/list of files.

DIRECTORY [...]

find : Find a file

DIRECTORY *.DIR

ls -d : List directory name(s) only ls -Rd

DIRECTORY

ls : List files.

/BY_OWNER

ls -l dir | grep owner : List only those files owned by a specifed user.

/COLUMN

ls -1 : List one file per line.

/DATE

ls -c : List by creation/last modification.

/FULL

ls -l : Long listing.

/TOTAL

du : Summarize disk usage.

/MODIFIED/SINCE [...]

find -mtime +n : Modified more than n days ago.

/MODIFIED /BEFORE [...]

find -mtime +n : Modified more than n days ago.

/OWNER

ls -g : Include group (used with |).

/SIZE

ls -s : Include size.

DISMOUNT/UNLOAD

mt rewofmt offline : Rewind and unload the tape.

DUMP

od : Dump a file in various formats.

/HEXADECIMAL

od -h : Hexadecimal dump.

/OCTAL

od -o : Octal dump.

EDIT/EDT,EDIT/EVE,EVE

vi : Screen editor session.

EDIT/RECOVER

vi -r : Recover a screen editing session.

EXCHANGE

dd : Back up, restore, and convert nonstandard files.

EXIT

exit : Terminate a script.

HELP

man : Display online reference pages.

HELP HINTS

man -k topic : Display a list of commands that correspond to the specified topic.

INQUIRE/NOPUNCTUATION

read choice? : Prompt for a responce and put the response into an environment variable.

INITIALIZE device:

fddisk -fmt device : Format a diskette.

LIBRARY

ar : Library maintainer.

/CREATE

ar -cr : Create library.

/EXTRACT

ar -x : Extract modules.

/INSERT

ar -q : Insert modules.

/LIST

ar -t : List modules.

/REPLACE

ar -r : Replace modules.

LINK

ld : Link compiled source code into an executable image.

login procedure

.login .cshrc .profile .kshrc
Set of commands automatically executed at login time.
On OpenVMS, LOGIN/CLI specifies an alternate command language interpreter.

LOGOUT

logout C shell exit Bourne and Korn shell Terminate a terminal session.

MAIL

mail : Invoke the mail utility.

MERGE

sort -m : Merge sorted files.

MOUNT

mount : Mount a tape.

ON COUNTROL_C THEN

trap 2 : Enable handler for Stop signal.

ON CONTROL_Y

onintr : On interrupt.

PHONE

talk tty name : Communicate interactively with another user.

PRINT

lpr : Print a file on the default line printer.

/COPIES=n

lpr -#n : Print n copies.

/DELETE

lpr -r : Remove file after printing

/FORM

lpr -ln : Make page n lines (default = 66)

/FORM

lpr -n : Print n column output.

/FORM

lpr -wn : Set line width to n

/HEADER

pr -h string | lpr : Print a header on each page.

/NAME=jobname

lpr -Jjobname : Include job name on the first page of the job.

/NOFLAG

lpr -h : Print with no header page.

/NOTIFY

lpr -m : Send mail upon completion.

/PAGES=(n,?)

lpr +n : Begin printing on page n.

/QUEUE

lpr -Pqueue : Print a file on the specified queue.

READ

read : Read input (korn shell)

RECALL/ALL

history : Recall command lines

REPLY/USER

write : Send a brief message to a logged-in user

RENAME

mv : move/rename a file(s)

RENAME/CONFIRM

mv -i : confirm the move/rename of a file(s)

SEARCH

grep : Search files for strings.

/MATCH=NOR

grep -v : List only lines that do not match

/NOEXACT

grep -i : Ignore case distinctions.

/NUMBERS

grep -n : Precede each match with line number.

/STATISTICS

grep -c : List only a file name that contains match

/WINDOW=0

grep -l : Return only file name(s) that contains match

file pattern/WINDOW=5

more -5 +/pattern file : Display search line plus two lines before and after. (Terminate with q).

file pattern/WIND=(5,0)

cat file | more -5+pattern : Display search line plus next five lines.

You can find more equivalency lists at :

http://wwwvms.mppmu.mpg.de/vmsdoc/VMS-UNIX_CMD-EQUIVALENTS.HTML

http://w3.pppl.gov/~bdavis/swdoc/VMS_Unix_cmds.txt