01-18-2008
You can do it using sed, awk and other.
The idea is to parse this line by line and to remove prefix and postfix.
In ksh following syntax:
line="${line#xxx}"
is "remove trailing string "xxx" from the variable line. if not possible to remove then return me the string unmodified. then assign result to line".
# : remove trailing part
## : remove trailing part (as much as possible)
% : similar but for ending part
%% : similar
Example:
x='aaabbb'
"${x#a}" is 'aabbb'
"${x##a}" is 'bbb'
sed should handle this best (however I had some bad experience with lines longer than 255 chars in sed). Just tell him to remove replace {prefix_pattern}{?}{postfix_pattern} and replace it with {?}.
Sory, but I don't remember exactly what was the syntax in sed.
In example given by me you can see:
line="${line##/|\ }"
This is "remove prefix". And prefix is a pattern: '/' or ' '
line="${line%.pls}"
This is "remove postfix". And postfix is '.pls'. Just replace this with a pattern and you have it.
To pass the data for 'read -p' you could use
cat file |&
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remove(3C) Standard C Library Functions remove(3C)
NAME
remove - remove file
SYNOPSIS
#include <stdio.h>
int remove(const char *path);
DESCRIPTION
The remove() function causes the file or empty directory whose name is the string pointed to by path to be no longer accessible by that
name. A subsequent attempt to open that file using that name will fail, unless the file is created anew.
For files, remove() is identical to unlink(). For directories, remove() is identical to rmdir().
See rmdir(2) and unlink(2) for a detailed list of failure conditions.
RETURN VALUES
Upon successful completion, remove() returns 0. Otherwise, it returns -1 and sets errno to indicate an error.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
SEE ALSO
rmdir(2), unlink(2), attributes(5), standards(5)
SunOS 5.10 14 Aug 2002 remove(3C)