Sponsored Content
Top Forums Shell Programming and Scripting Emulate group-by in shell script Post 302994444 by Aia on Thursday 23rd of March 2017 01:19:06 AM
Old 03-23-2017
Code:
perl -nalF',' -e '
 print "@F[0],MIN,MAX" and next if $. == 1;
 push @{$o{$F[0]}}, $F[1];
 END{ for( sort keys %o ){ @so = sort @{ $o{$_} };
      $l = $so[-1] ? $so[-1] : $so[0];
      print "$_,$so[0],$l" }
 }' mukulverma2408.file


Output:

Code:
Opeation,MIN,MAX
operation1,12321,87934
operation2,12312,72321
operation3,13288,13288
operation4,94865,94865
operation5,27383,27383
operation6,322,93483
operation7,3223,3223

This User Gave Thanks to Aia For This Post:
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Script to emulate ls -lh?

Does anyone have a script they would like to share that emulates "ls -lh" in ksh on Solaris 8? Yeah, I know. Real men don't need that wimpy "h." Well, I'm a wimp. ;) (0 Replies)
Discussion started by: shew01
0 Replies

2. Shell Programming and Scripting

Shell quiz: emulate an associative array

Most shells flavors do not have associative arrays a.k.a. maps. How would you emulate an associative array? I had this problem once and found a working solution, but I don't want to spoil the game hence I wont tell it. Wonder if anyone comes up with something better. (5 Replies)
Discussion started by: colemar
5 Replies

3. Shell Programming and Scripting

HELP! Group by in shell script (awk/sed?)

Hello, Could some expert soul please help me with this? I have following file format - task time abc 5 xyz 4 abc 5 xyz 3 ddd 10 ddd 2 I need to generate output as - task ... (5 Replies)
Discussion started by: sncoupons
5 Replies

4. Shell Programming and Scripting

How to emulate ^S/^Q from a script

Hi, I wrote a little menu script that searches through another script you specify and displays step-names and next to it the text of the step. The scripts are converted JCL from mainframe. It alows you to select steps you want and will then create a new script which includes only the steps you... (5 Replies)
Discussion started by: AliceD
5 Replies

5. Shell Programming and Scripting

Shell script to rename a group of files

Hello, I am having 1800 files in a directory with a specified format, like amms_850o_prod.000003uNy amms_850o_prod.000003u8x amms_850o_prod.000003taP amms_850o_prod.000003tKy amms_850o_prod.000003si4 amms_850o_prod.000003sTP amms_850o_prod.000003sBg amms_850o_prod.000003rvx... (12 Replies)
Discussion started by: atlantis
12 Replies

6. Shell Programming and Scripting

"group by" using shell script?

not sure if it's called "group by" , but what i'm going to do is like this: i have a file below: 192.168.1.10 192.168.1.10 192.168.1.10 192.168.1.11 192.168.1.15 192.168.1.15 192.168.1.20 192.168.1.22 then i hope to get the result like this: 192.168.1.10 : 3 192.168.1.11 : 1... (6 Replies)
Discussion started by: tiger2000
6 Replies

7. Shell Programming and Scripting

Shell Script to ignore # and take corresponding user and group

Hi, I have a following file: role.IMPACT_USER.user=admin role.IMPACT_USER.user=dd12345 role.IMPACT_USER.user=ss76767 #role.IMPACT_USER.user=root #role.IMPACT_USER.group=System role.IMPACT_USER.group=ImpactUser #Description: Allow users to login in to Impact, start and stop service... (5 Replies)
Discussion started by: dbashyam
5 Replies

8. Shell Programming and Scripting

Emulate fgrep -f in perl

Is there any equivalent of the below requirement in perl fgrep -f file1 file2 > file3 (2 Replies)
Discussion started by: aravindj80
2 Replies

9. Shell Programming and Scripting

Shell script - group by

Hi, I have text file as shown below. root 25 oracle 25 batch 30 griduser 32 admin 35 root 25 oracle 25 batch 30 griduser 32 oracle 25 batch 30 griduser 32 xuser 45 admin 35 I want to group by based on user name, and the output need to be as below. Not necessary the username to be... (10 Replies)
Discussion started by: baladelaware73
10 Replies

10. Shell Programming and Scripting

Shell Script to Group by Based on Multiple Fields in a file

Hi, I want to know if there is any simple approach to SUM a field based on group by of different fields for e.g. file1.txt contains below data 20160622|XXX1||50.00||50.00|MONEY|Plan1| 20160622|XXX1||100.00||100.00|MONEY|Plan1| 20160623|XXX1||25.00||25.00|MONEY|Plan1|... (3 Replies)
Discussion started by: cnu_theprince
3 Replies
newgrp(1)						      General Commands Manual							 newgrp(1)

NAME
newgrp - switch to a new group SYNOPSIS
[group] DESCRIPTION
The command changes your group ID without changing your user ID and replaces your current shell with a new one. If you specify group, the change is successful if group exists and either your user ID is a member of the new group, or group has a pass- word and you can supply it from the terminal. If you omit group, changes to the group specified in your entry in the password file, Whether the group is changed successfully or not, or the new group is the same as the old one or not, proceeds to replace your current shell with the one specified in the shell field of your password file entry. If that field is empty, uses the POSIX shell, (see sh- posix(1)). If you specify (hyphen) as the first argument, the new shell starts up as if you had just logged in. If you omit the new shell starts up as if you had invoked it as a subshell. You remain logged in and the current directory is unchanged, but calculations of access permissions to files are performed with respect to the new real and effective group IDs. Exported variables retain their values and are passed to the new shell. All unexported variables are deleted, but the new shell may reset them to default values. Since the current process is replaced when the new shell is started, exiting from the new shell has the same effect as exiting from the shell in which was executed. EXTERNAL INFLUENCES
International Code Set Support Characters from the 7-bit USASCII code set are supported in group names (see ascii(5)). DIAGNOSTICS
The command issues the following error messages: Your user ID does not qualify as a group member. The group name does not exist in If a password is required, it must come from a terminal. Standard input is not a terminal file, causing the new shell to fail. EXAMPLES
To change from your current group to group without executing the login routines: To change from your current group to group and execute the login routines: WARNINGS
There is no convenient way to enter a password into The use of group passwords is not recommended because, by their very nature, they encourage poor security practices. Group passwords may be eliminated in future HP-UX releases. If the specified group to has multiple inconsistent entries (i.e. the group id or/and password are different) in the group database, will consider the group id and password of the first matched group entry as the correct group id and password for the group. FILES
System group file System password file SEE ALSO
csh(1), ksh(1), login(1), sh-posix(1), group(4), passwd(4), environ(5). STANDARDS CONFORMANCE
newgrp(1)
All times are GMT -4. The time now is 09:24 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy