Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

Array scan before assignment

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Array scan before assignment
# 1  
Old 09-15-2010
Array scan before assignment
Code:
awk 'BEGIN { count=1;SITEARR[count]=0;}
{ namespace=$5; if ( namescpace in SITEARR) { print "Found  ",namespace; } else   { SITEARR[count++]=namespace; } } }
END {
for ( k in SITEARR ) {
 print SITEARR[k]
}
}' $ev_file

This AWK code is still giving me duplicate entries in SITEARR, whereas I have tried to scan them before adding the values of `namespace` to SITEARR array.

Regards,
BB
# 2  
Old 09-15-2010
I'm not sure what you're trying to achieve but:

- is this a typo?
Code:
namespace=$5; if ( namescpace in SITEARR)

- shouldn't you use a pre-increment for the counter here?
Code:
SITEARR[count++]=namespace

# 3  
Old 09-16-2010
what I'm trying to do is to scan an array before assigning values . if the value is not present, then only add the values of "namespace" to SITEARR array.

Regards,
# 4  
Old 09-16-2010
Check this:
Code:
awk '
{ namespace=$5 ;if ( namespace in SITEARR) { print "Found  ",namespace; } else   { a[++count]=namespace;SITEARR[namespace]=""; }  }
END {
for ( i=1;i<=count;i++) {
 print a[i]
}
}' $ev_file

You were using a counter as key of an associative array .
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Need a little help with assignment

Hello all im currently working on this assignment and a little stump on how to check for an argument heres the instructions: Step 4: Modify your script so that if there is an argument called TestError you display the following error message with your usage statement. TestError found Example:... (1 Reply)
Discussion started by: bsn3971
1 Replies

2. Homework & Coursework Questions

Help Assignment !! :D

Q-1 Write a shell script in Unix that lists files from your current working directory · By modification time when called with lm · By access time when called with la. By default, the script should show the listing of all the files in the current directory. Q-2 Write a shell script which... (1 Reply)
Discussion started by: Vishank Parikh
1 Replies

3. Shell Programming and Scripting

Help Assignment !! :D

Q-1 Write a shell script in Unix that lists files from your current working directory · By modification time when called with lm · By access time when called with la. By default, the script should show the listing of all the files in the current directory. Q-2 Write a... (1 Reply)
Discussion started by: Vishank Parikh
1 Replies

4. UNIX for Dummies Questions & Answers

best way to scan?

i want to scan all open and closed ports on a server. how can i do this. i intend on using nmap, but if there are better ways to do it, please let me know. i understand there are a total of 6335 allowable ports on a server. so out of that 6335, i want to know which is open or closed. id... (1 Reply)
Discussion started by: SkySmart
1 Replies

5. Homework & Coursework Questions

Assignment Help

1. List commands to create the directory hierarchy $HOME/a/b/c in vi to replace all occurences of TMP with tmp in lines 1 through 10 in vi to replace first occurence of CPU_file with DISK_file at line 15 2. Explain with a very simple example, usage of "ls -a" 3. What do the... (2 Replies)
Discussion started by: jessesaini
2 Replies

6. UNIX for Dummies Questions & Answers

Need help with KSH Array assignment

The following command is only intermittently successful, depends on the data I give it: set -A ImageShifts_sorted `awk '/START_SECTION IMAGE_DEFINITION/ {getline;getline;getline;getline; print $2"-"$3}' temp.ASCII | sort -u` My Error: set: -1: unknown option Finally, If I run that... (3 Replies)
Discussion started by: nerdcurious
3 Replies

7. Shell Programming and Scripting

RE value assignment

Hi all How do I assign a pattern to a variable after a match is found using a regular expression in PERL? For example using a regular expression (RE) and matching as given if ($_ =~ /(?:\s*+\s*,)*\s*+\s*/) I want to assign the pattern matched by the RE to a variable. e.g. given the... (4 Replies)
Discussion started by: my_Perl
4 Replies

8. What is on Your Mind?

New Assignment

All Sys Administrators, With due respect I would like to know what should be BEST Things to do when LEAVING one job , and what Precaution MUST be taken while taking over new JOB?? Please Discuss in detail the STEP to be taken for both the TIME ?? (3 Replies)
Discussion started by: vakharia Mahesh
3 Replies

9. UNIX for Dummies Questions & Answers

how to do my assignment?????

my lecturer want to do an assignment about telnet server..first, he want us to download the telnet server..then he want we do about copy files and share files by using the telnet server....what is that??? and one more thing is how to do 'ping'???? (1 Reply)
Discussion started by: amelia
1 Replies

10. UNIX for Dummies Questions & Answers

IP Name scan

Hi. how to search a range of IP:s for their registed IP names? Like nslookup or host for all IPs 130.xxx.xxx.1 to 130.xxx.xxx.254 //nicke (2 Replies)
Discussion started by: nicke30
2 Replies
Login or Register to Ask a Question