07-29-2009
OK here is what happens:
- It assigns 5 to i,
- Then, i++ increases i to 6 before multiplication,
- Now, i with its value being 6, is multiplied by ++i,
- ++i means use the value of i, then, increase it, so it will use 6 here, too.
- After the multiplication is done, i is incremented to 7, which is the value echoed by cout.
I hope it is clear now.
From my point of view, this is a drill or an exercise to explain precedence.
faizlo
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I have,
LIST="a b c d e"
for word in $LIST
do
echo $word
done
would give me
a
b
c
d
e
With the first iteration of the for loop, I get "a" as the result.
Is it possible that I get both "a" and "b" in only the first iteration.
In the next iteration I get "c" and "d" and so on.... (2 Replies)
Discussion started by: run_time_error
2 Replies
2. Shell Programming and Scripting
First: me == noob. Whats a good resource for shell script info cause I'm having trouble finding good info.
I'm writing a shell script to automate the setup of a flash 'page flip'.
My current code is below.
the page flip takes an xml file of format
<content>
<pages... (1 Reply)
Discussion started by: secoif
1 Replies
3. Post Here to Contact Site Administrators and Moderators
Hi Admin, i just noticed that when I do postings, the number does not increment. eg :
Post A -Total Posts 312
Post B - Total Posts 312
Post C - Total Posts 313
Post D - Total Posts 313
Why is this so? Can you kindly check this out? Thank you. (5 Replies)
Discussion started by: incredible
5 Replies
4. Shell Programming and Scripting
echo "Enter Starting id:"
echo ""
read rvst_strt_idxx
echo ""
echo "Enter Closing id:"
echo ""
read rvst_clsn_idxx
FIELD1=$rvst_strt_idxx
FIELD2="USER"
FIELD3="TEST"
FIELD4="12345"
FIELD5="00000"
echo ""
echo "INSERT INTO TABLE( FIELD1, FIELD2, FIELD3, FIELD4,
... (7 Replies)
Discussion started by: ultimatix
7 Replies
5. Shell Programming and Scripting
I'm currently trying to write a ksh or csh script that would change the name of a file found in directories and attach to the name an incrementing three digit number.
I know how to write a script that will go:
000, 001, 002, 003, etc
The twist is I need more increments then allowed by a 3... (11 Replies)
Discussion started by: Rust
11 Replies
6. UNIX for Dummies Questions & Answers
Hi,
want to increment a variable in a for loop like this:
for (( c=$total-1; c>=0; c-- ))
do
if ;
then
maximo=$valores
fi
done
But it gives the error:
No such file or directory
How can i do this only incrementing the c variable?
Thanks (8 Replies)
Discussion started by: limadario
8 Replies
7. Shell Programming and Scripting
Hello folks.
I am trying to increment my variable names to match a counter that is to be used later on...
Basically, i have a for loop that lists directories (for example TEST_OS DVP_OS PROD_OS ) but this loop is not static, it may contain 3 directory once and the next run 5 directories.
I... (6 Replies)
Discussion started by: Stephan
6 Replies
8. UNIX for Dummies Questions & Answers
I have a date variable like 2012-12-31 ( YYYY -MM -DD ) in flat file and it has to be incremtented by 1 every time i run the script
Example : i tried the below script after data modifcation but this does not seem to work
expr `20121231 +%Y%m%d` + 1
Note : Mine is not a GNU... (4 Replies)
Discussion started by: akshay01987
4 Replies
9. Shell Programming and Scripting
Hi
I have the below set of lines , i need to duplicate these lines 1000 times, also eevrytime when it is incremented , it should increment the one in Blue color.
130400030000010000200001
130400030000010000200002
140050030000010000200005A
eg:
130400030000010000200001... (5 Replies)
Discussion started by: santhoshks
5 Replies
10. Shell Programming and Scripting
Environment:
BASH version: GNU bash, version 3.2.51(1)-release (sparc-sun-solaris2.10)
Copyright (C) 2007 Free Software Foundation, Inc.
OS: Oracle Solaris 10 9/10 s10s_u9wos_14a SPARC
Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
... (4 Replies)
Discussion started by: os2mac
4 Replies
LEARN ABOUT CENTOS
scsi-rescan
RESCAN-SCSI-BUS.SH(1) User Commands RESCAN-SCSI-BUS.SH(1)
NAME
rescan-scsi-bus.sh - script for adding and removing SCSI devices without rebooting
SYNOPSIS
rescan-scsi-bus.sh [options] [host [host ...]]
OPTIONS
-a, --alltargets
scan all targets, not just currently existing [default: disabled]
-d enable debug [default: 0]
-l activates scanning for LUNs 0--7 [default: 0]
-L NUM activates scanning for LUNs 0--NUM [default: 0]
-w, --wide
scan for target device IDs 0--15 [default: 0--7]
-c enables scanning of channels 0 1 [default: 0 / all detected ones]
-r, --remove
enables removing of devices [default: disabled]
-f, --flush
flush failed multipath devices [default: disabled]
-i, --issue-lip
issue a FibreChannel LIP reset [default: disabled]
-u, --update
look for existing disks that have been remapped
-s, --resize
look for resized disks and reload associated multipath devices, if applicable
--forcerescan
rescan existing devices
--forceremove
remove and readd every device (DANGEROUS)
--nooptscan
don't stop looking for LUNs is 0 is not found
--color
use coloured prefixes OLD/NEW/DEL
--hosts=LIST
scan only host(s) in LIST
--channels=LIST
scan only channel(s) in LIST
--ids=LIST
scan only target ID(s) in LIST
--luns=LIST
scan only lun(s) in LIST
--sync, --nosync
issue a sync / no sync [default: sync if remove]
--attachpq3
tell kernel to attach sg to LUN 0 that reports PQ=3
--reportlun2
tell kernel to try REPORT_LUN even on SCSI2 devices
--largelun
tell kernel to support LUNs > 7 even on SCSI2 devs
--sparselun
tell kernel to support sparse LUN numbering
Host numbers may thus be specified either directly on cmd line (deprecated) or or with the --hosts=LIST parameter (recommended).
LIST: A[-B][,C[-D]]... is a comma separated list of single values and ranges (No spaces allowed.)
SEE ALSO
rescan-scsi-bus.sh Homepage: http://www.garloff.de/kurt/linux/#rescan-scsi
sg3_utils Homepage: http://sg.danny.cz/sg
rescan-scsi-bus.sh 1.57 leden 2014 RESCAN-SCSI-BUS.SH(1)