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

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tr
Usage notes
Examples
tr ’a-z’ ’A-Z’
This is not, however, the recommended method; use the [:class:]
construct instead.
If the second endpoint precedes the starting endpoint in the collation
sequence, it causes an error.
If either or both of the range endpoints are octal sequences of the form
\ooo, this represents the range of specific coded values between the two
range endpoints, inclusive.
This construct c1–c2 is only applied in POSIX locale.
Note: The current locale has a significant effect on results when specifying
subranges using this method. If the command is required to give
consistent results irrespective of locale, the use of construct c1-c2
should be avoided.
[c*n] This represents n repeated occurrences of character c. (If n has a leading
zero, tr assumes it is octal; otherwise, it is assumed to be decimal.) You
can omit the number for the last character in a subset. This representation
is valid only in string2.
[:class:]
This represents all characters that belong to the character class class in the
locale indicated by LC_CTYPE. When the class [:upper] or [:lower:]
appears in string1 and the opposite class, [:lower:] or [:upper:] appears
in string2, tr uses the LC_CTYPE tolower or toupper mappings in the
same relative positions.
[=c=] This represents all characters that belong to the same equivalence class as
the character c in the locale indicated by LC_COLLATE. Only international
versions of the code support this format.
When string2 is shorter than string1, tr does not pad string2. The remaining
characters in string1 will not be translated. For example:
tr ’0123456789’ ’d’
only translates ’0’ to ’d’, ’123456789’ remain unchanged.
Coding the example in the following way:
tr ’0123456789’ ’[d*]’
translates all digits to the letter ’d’.
This example creates a list of all words (strings of letters) found in file1 and puts it
in file2:
tr –cs "[:alpha:]" "[\n*]" file2
Environment variables
tr uses the following environment variable:
706 z/OS V1R9.0 UNIX System Services Command Reference