02-11-2009
Hello,
I am amazed of how smooth the code is ...can you explain a little in words what is the logic of the line:
max[$1] = !($1 in max) ? $2 : ($2 > max[$1]) ? $2 : max[$1]
Thanks.
Last edited by gio001; 02-11-2009 at 04:39 PM..
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Is there any way using the sort command to get something like a GROUP BY clause?
I'm trying to sort through race_event records and group them by those individuals that raced together in the same race on the same date at the same track, but i run into a problem when there were days when the track... (6 Replies)
Discussion started by: RacerX
6 Replies
2. Shell Programming and Scripting
Hi,
Need awk help to group and print lines to format the output as shown below
INPUT FORMAT
set echo on
set heading on
set spool on
/* SCHEMA1 */ CREATE TABLE T1;
/* SCHEMA1 */ CREATE TABLE T2;
/* SCHEMA1 */ CREATE TABLE T3;
/* SCHEMA1 */ CREATE TABLE T4;
/* SCHEMA1 */ CREATE TABLE T5;... (5 Replies)
Discussion started by: rajan_san
5 Replies
3. Shell Programming and Scripting
I wrote script in bash which generates this report:
User1,admin,rep,User2,shell,path1,x1,r1
User2,admin,rep,User7,shell,path1,x1,r1
User3,admin,rep,User4,shell,path1,x1,r1
User4,admin,rep,User3,shell,path1,x1,r1
User5,admin,rep,User1,shell,path1,x1,r1
User6,admin,rep,User5,shell,path1,x1,r1... (6 Replies)
Discussion started by: patrykxes
6 Replies
4. Shell Programming and Scripting
Hi,
I've the following two CSV files:
File1.csv File2.csv
Class,Student# Student#,Marks
1001,6001 6002,50
1001,6002 6001,60
1002,7000 ... (3 Replies)
Discussion started by: Matrix2682
3 Replies
5. Shell Programming and Scripting
top -n 0 | head -4 | tail -1 | awk -F "," '{ if ( $2 < 10G ) { print " High Memory utilization " } else { print " " } }'
23n01 labc> ./b.sh
High Memory utilization
This prints hifgh memory utilization even though there is enough memory.
Memory: 32G real, 19G free, 11G swap in use, 45G... (0 Replies)
Discussion started by: arch12
0 Replies
6. Shell Programming and Scripting
I've this file and need to sort the data in each group
File would look like this ...
cat file1.txt
Reason : ABC
12345-0023
32123-5400
32442-5333
Reason : DEF
42523-3453
23345-3311
Reason : HIJ
454553-0001
I would like to sort each group on the last 4 fileds and print them... (11 Replies)
Discussion started by: prash184u
11 Replies
7. Shell Programming and Scripting
Hello,
I have a file and i want to sort by third column and extract the three top lines of each group, it is determined by the second column (144, 89, 55, etc).
Could you please help me with the appropiate awk shell script
XLY-XLP 144 0.592772 XLY-XLE 144 0.798121 ... (3 Replies)
Discussion started by: csierra
3 Replies
8. Shell Programming and Scripting
Hi everyone,
I've really searched for a solution to this and this is what I found so far:
I need to sort a command output (here represented as a "cat file" command) and from the second down to the second-last line based on the second row and then print ALL the output with the specified section... (7 Replies)
Discussion started by: dentex
7 Replies
9. UNIX for Dummies Questions & Answers
URGENT HELP IS NEEDED!!
I am looking to move matching lines (01 - 07) from File1 and 77 tab the matching string from File2, to File3.txt. I am almost done but
- Currently, script is not printing lines to File3.txt in order.
- Also the matching lines are not moving out of File1.txt
... (1 Reply)
Discussion started by: High-T
1 Replies
10. Shell Programming and Scripting
Hi
I have a file as below
<field1> <field2> <field3> ... <field_num1> <field_num2>
Trying to sort based on difference of <field_num1> and <field_num2> in desceding order and print all fields.
I tried this and it doesn't sort on the difference field .. Appreciate your help.
cat... (9 Replies)
Discussion started by: newstart
9 Replies
LEARN ABOUT SUSE
tgt-setup-lun
tgt-setup-lun(8) System Manager's Manual tgt-setup-lun(8)
NAME
tgt-setup-lun - creates a target, adds a device to the target and defines initiators that can connect to the target
SYNOPSIS
tgt-setup-lun -d device -n target_name [initiator_IP1 initiator_IP2 ...] [-h]
DESCRIPTION
Starts tgtd if necessary and creates a target according to the supplied target_name. The format of the target name is as follows:
iqn.2001-04.com.<hostname>-<target_name> The target name must be unique.
The script then adds the requested device to the target. If specific IP addresses are defined, it adds them to the list of allowed initia-
tors for that target. If no IP addresses is defined, it defines that the target accepts any initiator.
EXAMPLES
Create a target that uses /dev/sdb1 and allows connections only from 192.168.10.81:
tgt-setup-lun -d /dev/sdb1 -n my_target 192.168.10.81
Create a target that uses /dev/sdb1 and allows connections only from 192.168.10.81 and 192.168.10.82:
tgt-setup-lun -d /dev/sdb1 -n my_target 192.168.10.81 192.168.10.82
Create a target that uses /dev/sdb1 and allows connections from any initiator:
tgt-setup-lun -d /dev/sdb1 -n my_target
Display help:
tgt-setup-lun -h
AUTHOR
Written by Erez Zilber
REPORTING BUGS
Report bugs to <erezz@voltaire.com>.
COPYRIGHT
Copyright (C) Voltaire Ltd. 2008.
tgt-setup-lun(8)