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

chtag
Examples
Usage notes
Note: Codesets which are aliases of each other exist which may cause the
test to fail, since the file inquiry operator may return an alias of the
codeset you are testing.
–q Suppresses warning messages.
–r Removes any tagging information associated with the file and sets the
status of the file to ″untagged″. This option disables automatic conversion
for the files. –r is mutually exclusive with the –b, –c, –m, and –t options.
–R Recursively changes the file tag information. For each pathname operand
that names a directory, chtag changes the file tag information on all of the
files in the file hierarchy below it. When –h is not specified, and symbolic
links (or external links) are specified or encountered during the file hierarchy
traversal, the links are followed, and the resolved file (or files in the
directory) are changed.
–t Indicates that the specified file contains pure (uniformly encoded) text data.
Used alone, this option sets txtflag = ON and retains the existing character
codeset associated with the file. To set or change the codeset, use the –c
option. Files that are tagged with this option and contain a valid codeset are
candidates for automatic conversion. –t is mutually exclusive with the –b,
–m, and –r options.
–v Gives verbose output. Displays what state the file tag is currently in, and
what state the user is trying to change it to. This option is only useful for the
–t, –b, –m, –r and –c options. Output will be displayed in the following
format:
txtflag Char Set Char Set ---> txtflag Char Set Char Set Filename
Name Type Name Type
If the character set name is unknown, the CCSID will be used. Sample output will
look like the following:
chtag -mvc IBM-1047 file3.c
t ISO-8859 A ---> m IBM-1047 E file3.c
Where:
A = ASCII
E = EBCDIC
? = unknown
1. To specify a text file with IBM-1047 codeset, issue:
chtag -tc IBM-1047 filename
2. To specify a binary file, issue:
chtag -b filename
3. To specify a file of mixed binary and text data, with a new codeset of
ISO8859-1, issue:
chtag -mc ISO8859-1 filename
4. To remove the tag from a file issue:
chtag -r filename
Table 4 on page 135 illustrates how the different combinations of txtflag and
Character Code Set / CCSID affect a file’s candidacy for automatic conversion.
134 z/OS V1R9.0 UNIX System Services Command Reference