Unless otherwise noted, the DCS commands that accept MSS file pathnames as input operands will accept POSIX-style shell patterns for expansion (also known as shell wildcards, as described briefly below and in POSIX section 3.13).
msls '*.tar.gz'mss:) need
be quoted.
A pattern consists of normal characters, which match themselves, and
metacharacters. The metacharacters are !,
*, ?,
and [. These characters lose their special
meanings if they are quoted by preceeding them with a back slash
(\).
An asterisk (*) matches any string of characters.
A question mark (?) matches any single character.
A left bracket ([) introduces a character
class. The end of the character class is indicated by a right bracket
(]); if the ]
is missing then the [ matches the
[ character itself, rather than introducing
a character class.
A character class matches any of the characters between the square brackets.
A range of characters may be specified using a minus sign
(-). The character class may be complemented by
making an exclamation point (!) the first
character of the character class.
To include a ] in a character class,
make it the first character listed (after the !,
if any). To include a minus sign, make it the first or last character listed.
Csh-style brace patterns like {pat1,pat2,...} will
also be expanded. Csh-style tilde expansion (~user
or ~/) is also done.
In the following table, each type of wildcard is marked with a notation about its relative expansion speed. Those wildcards marked as "Slow" will have to read the entire directory contents to determine all matching file names. This could be slow if the directory has more than a few hundred files, or very slow for directories with more than a thousand files. See the section called “Metadata Guidelines” for more wildcard usage guidelines.
Table 2.1. Shell Pattern (Wildcard) Summary
| Pattern | Expansion Speed | Description | Example | Meaning |
|---|---|---|---|---|
* |
Slow | Matches 0 or more characters | 'ocean/199*' |
Match all names in the ocean subdirectory
that start with '199'.
|
? |
Slow | Match a single character | 'ocean/199?/data' |
Matches all subdirectories of the subdirectory
ocean that have four character names that
start with '199'. Then selects any
name data within those matched directories.
|
[] |
Slow | Match a class of characters | 'ocean[bpt]' |
Matches all names of the forms oceanb,
oceanp, and oceant.
|
Use - for a range of characters
|
'ocean[a-z]' |
Matches all names that start with ocean
followed by a lower case letter.
|
||
Use ! as the first character
for negation.
|
'ocean[!w-z]' |
Matches all names that start with ocean
followed by a character that is not one of 'w', 'x', 'y'
or 'z'.
|
||
{} |
Fast | Match multiple patterns | 'ocean/{1995,2000}' |
Matches all names of the forms ocean/1995
or ocean/2000.
|
~ |
Fast | Shorthand for a user's top-level directory | '~/data' |
If the user's CISL logon name is BART, it expands to
/BART/data.
|
| Shorthand for another user's top-level directory | '~lisa/data' |
Expands to /LISA/data.
|
mswrite local_file '/USER/A***'/USER/A***.
If you then were to try:
msrm '/USER/A***'/USER/A. To remove this file, you must use:
msrm '/USER/A\*\*\*'