Identifying The Data Set - IBM System 360 User Manual

line before it executes the subcommand. Context editing can be used for
data sets with or without line numbers. A set of subcommands (UP, DOWN,
TOP" BOTTOM, and FIND) allows you to move the pointer up or down a
specified number of lines, or to find a line with a particular series of
characters in it and move the pointer to it. After the pointer is
poSitioned you can enter the subcommand that performs the functions you
require. The subcommand may use an asterisk
(*)
instead of a line
number to specify the line indicated by the pointer, or it may operate
on the current line by default.
After you finish editing the data, you can switch to input mode by
either of two methods:
1. Entering the INPUT or INSERT subcommand ..
2. Entering a null line,.. (Press the RETURN key to enter a null line. >
The system lets you know you have selected input mode by printing the
following message:
INPUT
You can terminate the EDIT command at any time by switching to edit
mode (if not already in edit mode> and entering the END subcommand. The
system then prints a READY message, and you can enter any command you
choose.
Note: If you want to enter a blank line in your data set, you must
enter a blank by pressing the space bar, and then press the RETURN key.
You can then enter other lines after the blank line. If you fail to
enter a blank and press only the RETURN key, you enter a null line which
causes EDIT to switch modes.
The remainder of this chapter describes how you can use the
sUbcommands of EDIT to:
• Identify a data set.
• Create a data set.
• Place data into columns ..
• Find and position the current line pointer.
• Update a data set.
• List the contents of a data set.
• store a data set.
• End the EDIT functions.
The following functions described in this chapter are performed with
commands other than EDIT:
• Rename a data set.
• Delete a data set,.
• Establish passwords for a data set.
• Allocate a data set.
• Free an allocated data set.
• List the names of your data sets.
Identifying the Data Set
The EDIT command is used to specify the name of a data set and whether
you want to create it or edit it. If you indicate that you are going" to
create a new data set, the system enters input mode. If you indicate
that you are going to edit an existing data set, the system enters edit
mode after you enter the EDIT command. For example, the NEW operand in
Entering and Manipulating Data 29