02-01-2013
Quote:
Originally Posted by
Scrutinizer
Because the first pattern matches ([1-9]*), the second pattern (*) does not get evaluated.
o.yes..! That means if
*) echo .... ;;
places first
result must be the first one whatever input is .
Thank you much u telling me that .!
thank you
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
How can convert a Lower case variable value to an upper case in the kron shell script. (3 Replies)
Discussion started by: dchalavadi
3 Replies
2. UNIX for Dummies Questions & Answers
It has been quite a while since I used UNIX. I am developing
a security system and I was wondering if UNIX and/or LINUX
user ID's are case-sensitive.
i.e. can user 'daveb' and 'Daveb' exist on the same system with
completely different authorizations/priorities, etc.? (3 Replies)
Discussion started by: dmilleville
3 Replies
3. UNIX for Dummies Questions & Answers
I tried looking for the answer online and came up with only a few semi-answers as to why file and directory names are case sensitive in Unix. Right off the bat, I'll say this doesn't bother me. But I run into tons of Windows and OpenVMS admins in my day job who go batty when they have to deal... (3 Replies)
Discussion started by: deckard
3 Replies
4. UNIX for Dummies Questions & Answers
Friends,
I was asked to work on Clear Case after setting up.
For this created a dynamic view by using the command, 'cleartool mkview -tag <view name> -stgloc viewstg'.
Now I am not sure how to proceed further :-( May I request you to help me out in continuing further. I have a deadline in... (1 Reply)
Discussion started by: mmohan
1 Replies
5. Shell Programming and Scripting
HELLO ALL,
URGENTLY NEEDED A SCRIPT TO SELECT AND DELETE LOWER AND MIXED CASE RECORDS FROM A COLUMN IN A TABLE.
FOR EXAMPLE : Table name is EMPLOYEE and the column name is CITY
and the CITY column records will be: Newyork
washington
... (1 Reply)
Discussion started by: abhilash mn
1 Replies
6. Shell Programming and Scripting
Hi,
In below code, i am expecting the output has
Bye
Bye
But i am getting has
Bye
Hi
Code:
#!/usr/bin/bash
var="Hi"
cat txt.txt | while read var1
do
next="Bye"
case $var in
Hi) (1 Reply)
Discussion started by: Balamani
1 Replies
7. Shell Programming and Scripting
Hi
I wanted to know if we can write a nested case in UNIX script.
Something like following -
Case ${sDB} in
Srvr1)
case ${sSchema}
Sch1)
DBusr=Username1
DBPwd=Pwd1
;;
Sch2)
DBusr=Username2
... (1 Reply)
Discussion started by: sumeet
1 Replies
8. Shell Programming and Scripting
Hi All
I have a script which extracts values from a Database (A persons name) and puts it into a variable in my script IE: $NAME
However the Value in the DB is all in uppercase and contains the users first name and last name
EG:
> echo $NAME
GRAHAM BOYLE
>
What I need is only the... (7 Replies)
Discussion started by: grahambo2005
7 Replies
9. Shell Programming and Scripting
Hi,
I am New to Unix Shell Scripting basically, i need some help in achieving a case statement in Shell script to call recursively That is if case having like 1 2 3 4 options , if user inputs 1 and gets executed case should ask for options again but user should not input the same input value 1,... (7 Replies)
Discussion started by: karthikram
7 Replies
10. Shell Programming and Scripting
have written the below code to check whether the string received from user is a file name or dir using case statement, but its going into default case*).
#!/bin/sh
#Get a string from user and check whether its a existing filename or not
rm str2
rm str3
echo "enter a file \c"
read fil... (8 Replies)
Discussion started by: Mohan0509
8 Replies
LEARN ABOUT DEBIAN
z88dk-copt
copt(1) z88 Development Kit copt(1)
NAME
copt - peephole optimizer
SYSNOPIS
copt file ...
DESCRIPTION
copt is a general-purpose peephole optimizer. It reads code from its standard input and writes an improved version to its standard output.
copy reads the named files for its optimizations, which are encoded as follows:
<pattern for input line 1>
<pattern for input line 2>
...
<pattern for input line n>
=
<pattern for output line 1>
<pattern for output line 2>
...
<pattern for output line m>
<blank line>
Pattern matching uses literal string comparison, with one exception: ``%%'' matches the ``%'' character, and ``%'' followed by a digit
matches everything up to the next occurrence of the next pattern character, though all occurrences of %n must denote the same string. For
example, the pattern ``%1=%1.'' matches exactly those strings that begin with a string X, followed by a ``='' (the first), followed by a
second occurrence of X, followed by a period. In this way, the input/output pattern
mov $%1,r%2
mov *r%2,r%2
=
mov %1,r%2
commands copt to replace runs like
mov $_a,r3
mov *r3,r3
with
mov _a,r3
Note that a tab or newline can terminate a %n variable.
copt compares each run of input patterns with the current input instruction and its predecessors. If no match is found, it advances to the
next input instruction and tries again. Otherwise, it replaces the input instructions with the corresponding output patterns, pattern vari-
ables instantiated,and resumes its search with the first instruction of the replacement. copt matches input patterns in reverse order to
cascade optimizations without backing up.
BUGS
Errors in optimization files are always possible.
SEE ALSO
z88dk(1), z88dk-zcc(1), z88dk-z80asm(1), z88dk-appmake(1), z88dk-copt(1).
AUTHOR
z88dk was written by Dominic Morris <dom@z88dk.org>, and others.
01 December 2009 copt(1)