Visit Our UNIX and Linux User Community


How do properties effect script?


 
Thread Tools Search this Thread
Top Forums UNIX for Dummies Questions & Answers How do properties effect script?
# 1  
Old 06-21-2006
How do properties effect script?

Hi,

I have noticed that rm -if will perform completely different to rm -fi. Whats the pattern of how I put my options to the script in relation to how it will act.

i.e

rm -fi treat the remove as interative but
rm -if treats it as forced

Thansk, Chris.
# 2  
Old 06-21-2006
To be honest, I was surprised to find that the -f and -i options work together. But on checking the man page (on HP and Sun), I found the following:
On HP-UX:
HTML Code:
rm recognizes the following options:

           -f   Force each file or directory to be removed without prompting
                for confirmation, regardless of the permissions of the
                entry.  This option also suppresses diagnostic messages
                regarding nonexistent operands.

                This option does not suppress any diagnostic messages other
                than those regarding nonexistent operands.  To suppress all
                error message and interactive prompts, the -f option should
                be used while redirecting standard error output to
                /dev/null.

                This option ignores any previous occurrence of the -i
                option.

 Hewlett-Packard Company            - 1 -   HP-UX Release 11i: November 2000

 rm(1)                                                                 rm(1)

           -i   Write a prompt to standard error requesting confirmation
                before removing each entry.
On Solaris:
HTML Code:
    -f    Removes all files (whether write-protected or not)  in
           a  directory  without  prompting the user. In a write-
           protected directory, however, files are never  removed
           (whatever  their permissions are), but no messages are
           displayed. If the removal of a write-protected  direc-
           tory  is  attempted,  this option will not suppress an
           error message.

     -i    Interactive. With this option, rm prompts for  confir-
           mation  before removing any files. It overrides the -f
           option and remains in  effect  even  if  the  standard
           input is not a terminal.
So if you run "rm -fi" on HP, it is interactive, but "rm -if" is forced as specified in the man page. But on Solaris, if "-i" is specified, then the "-f" is ignored regardless of where it occurs.
 

Previous Thread | Next Thread
Test Your Knowledge in Computers #459
Difficulty: Medium
NTP uses an epoch of January 1, 1970.
True or False?

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

awk set $1 to itself, effect on $0

jotne posted an interesting thread an hour or two ago, and ended up with the following: awk '{$1=$1} /^+$/' file I had a question about the effect of $1=$1 assignment, and thought it better to start a new thread, because it's really a different topic. $ cat test.sh set -v echo " abcd" | awk... (3 Replies)
Discussion started by: hanson44
3 Replies

2. Shell Programming and Scripting

Alias has no effect in script

It doesn't have effect in script but it works on the terminal root@server:/opt/kvm/usecases/logs# alias echo='echo -e' root@server:/opt/kvm/usecases/logs# echo "xxxx\n" xxxx root@server:/opt/kvm/usecases/logs# cat xx.sh #!/bin/bash alias echo='echo -n' echo "sssf \n" ... (3 Replies)
Discussion started by: yanglei_fage
3 Replies

3. Shell Programming and Scripting

script to parse the properties file

Hi Friends, I have a requirement to parse a properties file having a key=value pairs. i need to count the number of key value pairs in the properties file and iterate through each key-value pair. I have written the script to read the number of lines from the property file, but cannot... (2 Replies)
Discussion started by: prashdeep
2 Replies

4. UNIX for Dummies Questions & Answers

What crontab is in effect after reboot

A basic cron question and I hope I explain it enough. If a person creates a file to use with cron and issues the followin command: crontab I understand this will set the cron entries to whatever is in . However, if we now edit the crontab with: crontab -e and save, how does cron... (3 Replies)
Discussion started by: niswonp
3 Replies

5. Shell Programming and Scripting

Reading the Properties File From Shell script

Hi, I am new to the shell script please I need help for following question. I have properties file name called "com.test.properties" I have No of key values in this properties. com.person.name = xyz com.person.age = 55 com.person.address = hello I want read this properties but i... (1 Reply)
Discussion started by: venukjs
1 Replies

6. Shell Programming and Scripting

Nullify the effect of Trap command in later part of the script

Hi All, i have an issue regarding trap command. i have specified trap function in the beginning of the script to catch some signals but in the later part of the script i want to remove the effect of this. Can anybody help me out of this. for e.g. pressing Ctrl+C for the first time should... (2 Replies)
Discussion started by: vikas_kesarwani
2 Replies

7. Virtualization and Cloud Computing

The Network Effect - Part 1

2008-10-31T22:46:14+01:00 http://geekandpoke.typepad.com/.a/6a00d8341d3df553ef010535ce543e970c-800wi Nicholas Carr (and here) has some problems with Tim O'Reilly's theory about the cloud and the network effect. http://feeds.feedburner.com/~f/GeekAndPoke?i=OFn0M... (0 Replies)
Discussion started by: Linux Bot
0 Replies

8. Solaris

will this script in crontab effect SUN 9??

Hi all, I work in Sun Solaris 9. I am plan to put the following script(remove90dysOldrfiles.sh) in CRONTAB for removing huge huge number of files those are older than 90 days from different directory. In the Crontab i will set the time for everymidnight it will search 90days older file and... (2 Replies)
Discussion started by: thepurple
2 Replies

9. UNIX for Advanced & Expert Users

Effect of Preemptive Kernel

hi there, i am porting kernel 2.2 driver program to kernel 2.6. for some extent i am successfull but some times the system gets hanged. what might be the problem? i am not able to get any help from log messages as nothing is being printed at that moment. hey does this kernel preemptiveness and... (2 Replies)
Discussion started by: sriram.ec
2 Replies

10. UNIX for Dummies Questions & Answers

recursive effect!!

I run the following command in some of my folders... and ended up with a huge mess!! find . -type f -exec perl -e 's/blabla/zzzxxxx/gi' -p -i.bak {} \; I had to kill the process and later when I checked with one of my folders.. ls vaditerm.dt.bak vaditerm.dt.bak.bak... (2 Replies)
Discussion started by: sskb
2 Replies

Featured Tech Videos