z/OS V1R9.0 UNIX System Services Command ... - Christian Grothoff

sh
Files
Table 29. Shell Variables for Automatic Conversion (sh command) (continued)
Variable Purpose
_TAG_REDIR_IN=BIN Redirected stdin will override the file’s TXTFLAG, treating it
as if it were tagged as:
TXTFLAG = OFF, CCSID = existing file tag CCSID
This effectively disables automatic conversion.
_TAG_REDIR_OUT=TXT Redirected stdout will be tagged as:
TXTFLAG = ON, CCSID = program CCSID at the time of
the first write (if not already tagged)
_TAG_REDIR_OUT=BIN Redirected stdout will be tagged as:
TXTFLAG = OFF, CCSID = program CCSID at the time of
the first write (if not already tagged)
_TAG_REDIR_ERR=TXT Redirected stderr will be tagged as:
TXTFLAG = ON, CCSID = program CCSID at the time of
the first write (if not already tagged)
_TAG_REDIR_ERR=BIN Redirected stderr will be tagged as:
TXTFLAG = OFF, CCSID = program CCSID at the time of
the first write (if not already tagged)
The automatic conversion shell variable can be specified for one command, or for
multiple commands within a shell session or shell script. If the variable is exported,
it will affect child shells, that is, nested shell scripts.
Note: Because the standard shell execution performs redirection before variable
assignment, the syntax for specifying the shell variable for one command is:
(_TAG_REDIR_OUT=TXT; command >file)
These variables can also be used in pipelined commands, to tag the stdout of each
command that is writing to a pipeline, and/or the stdin of each command reading
from a pipeline.
sh_history
The default history storage file.
.profile
The user profile for login shell.
/etc/profile
The systemwide profile for login shells.
/tmp/sh*
Temporary files for here-documents, command substitution, history
re-execution, and so on. The default directory /tmp can be overridden by
setting the shell variable TMPDIR to the name of some other directory.
/etc/suid_profile
Used instead of the script specified by the ENV variable (and the
574 z/OS V1R9.0 UNIX System Services Command Reference