07-07-2004
Testing the last character in a string
Hi
In the shell scripted I'm trying to write!
I would like to test the last character in a string. The string is a path/directory and I want to see if the last character is a '/'.
The string (path/directory) is inputted by a user. If the '/' character isn't present then I want to be able to append this character to the string.
I started to right this in awk then scrapped it as I thought there must be an easier way?
Thanks in advance
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LEARN ABOUT OSF1
xtfindfile
XtFindFile(3Xt) XtFindFile(3Xt)
NAME
XtFindFile - search for a file using substitutions in the path list
SYNOPSIS
String XtFindFile(path, substitutions, num_substitutions, predicate)
String path;
Substitution substitutions;
Cardinal num_substitutions;
XtFilePredicate predicate;
ARGUMENTS
Specifies a path of file names, including substitution characters. Specifies a list of substitutions to make into a path. Specifies the
number of substitutions passed in. Specifies a procedure to call to judge a potential file name, or NULL.
DESCRIPTION
The path parameter specifies a string that consists of a series of potential file names delimited by colons. Within each name, the percent
character specifies a string substitution selected by the following character. The character sequence "%:" specifies an embedded colon
that is not a delimiter; the sequence is replaced by a single colon. The character sequence "%%" specifies a percent character that does
not introduce a substitution; the sequence is replaced by a single percent character. If a percent character is followed by any other
character, XtFindFile looks through the specified substitutions for that character in the match field and if found replaces the percent and
match characters with the string in the corresponding substitution field. A substitution field entry of NULL is equivalent to a pointer to
an empty string. If the operating system does not interpret multiple embedded name separators in the path (that is, "/" in POSIX) the same
way as a single separator, XtFindFile will collapse multiple separators into a single one after performing all string substitutions.
Except for collapsing embedded separators, the contents of the string substitutions are not interpreted by XtFindFile and may therefore
contain any operating-system-dependent characters, including additional name separators. Each resulting string is passed to the predicate
procedure until a string is found for which the procedure returns True; this string is the return value for XtFindFile. If no string yields
a True return from the predicate, XtFindFile returns NULL.
If the predicate parameter is NULL, an internal procedure that checks if the file exists, is readable, and is not a directory will be used.
It is the responsibility of the caller to free the returned string using XtFree when it is no longer needed.
SEE ALSO
X Toolkit Intrinsics -- C Language Interface
Xlib -- C Language X Interface
XtFindFile(3Xt)