Sponsored Content
Top Forums Shell Programming and Scripting Bash - remove duplicates without sort Post 302849369 by ZeZeUnA.User on Sunday 1st of September 2013 04:39:02 AM
Old 09-01-2013
Question

Quote:
Originally Posted by Jotne
Try
Code:
awk '!a[$0]++' file

Hi.
I tried:
Code:
echo -e "prova\012zappa\012prova\012quadro\012cesto\012zappa" | awk '!a[$0]++'

and it works Smilie.

Please explain me what does it means:
Code:
'!a[$0]++'

 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Removing duplicates [sort , uniq]

Hey Guys, I have file which looks like this, Contig201#numbPA Contig1452#nmdynD6PA dm022p15.r#CG6461PA dm005e16.f#SpatPA IGU001_0015_A06.f#CG17593PA I need to remove duplicates based on the chracter matching upto '#'. for example if we consider this.. Contig201#numbPA... (4 Replies)
Discussion started by: sharatz83
4 Replies

2. Shell Programming and Scripting

Sort, Uniq, Duplicates

Input File is : ------------- 25060008,0040,03, 25136437,0030,03, 25069457,0040,02, 80303438,0014,03,1st 80321837,0009,03,1st 80321977,0009,03,1st 80341345,0007,03,1st 84176527,0047,03,1st 84176527,0047,03, 20000735,0018,03,1st 25060008,0040,03, I am using the following in the script... (5 Replies)
Discussion started by: Amruta Pitkar
5 Replies

3. UNIX for Dummies Questions & Answers

removing duplicates and sort -k

Hello experts, I am trying to remove all lines in a csv file where the 2nd columns is a duplicate. I am try to use sort with the key parameter sort -u -k 2,2 File.csv > Output.csv File.csv File Name|Document Name|Document Title|Organization Word Doc 1.doc|Word Document|Sample... (3 Replies)
Discussion started by: orahi001
3 Replies

4. Shell Programming and Scripting

bash ps; remove the header, sort and reinsert

Hi, I'm ssh'ing into a server using ruby and sending a one-liner to retrieve the output of the 'ps aux' command. So far, this is what I have: ps aux | sort -r -n -k3 | sed -e '1s/^/this is first\n/' | head -n10 With this I can insert a line at position 1, but I would rather extract the... (3 Replies)
Discussion started by: gekeha
3 Replies

5. Shell Programming and Scripting

remove duplicates and sort

Hi, I'm using the below command to sort and remove duplicates in a file. But, i need to make this applied to the same file instead of directing it to another. Thanks (6 Replies)
Discussion started by: dvah
6 Replies

6. Shell Programming and Scripting

bash - remove duplicates

I need to use a bash script to remove duplicate files from a download list, but I cannot use uniq because the urls are different. I need to go from this: http://***/fae78fe/file1.wmv http://***/39du7si/file1.wmv http://***/d8el2hd/file2.wmv http://***/h893js3/file2.wmv to this: ... (2 Replies)
Discussion started by: locoroco
2 Replies

7. Shell Programming and Scripting

Sort data by date first and then remove duplicates

Hi , I have below data inside a file named ref.psv . I want to create a shell script which will do the below 2 points : (1) sort the file content first based on the latest date which is the last column in the file (actual file its the 175th column) (2)after sorting the file based on latest date... (3 Replies)
Discussion started by: samrat dutta
3 Replies

8. Shell Programming and Scripting

Sort and Remove duplicates

Here is my task : I need to sort two input files and remove duplicates in the output files : Sort by 13 characters from 97 Ascending Sort by 1 characters from 96 Ascending If duplicates are found retain the first value in the file the input files are variable length, convert... (4 Replies)
Discussion started by: ysvsr1
4 Replies

9. UNIX for Beginners Questions & Answers

Sort and remove duplicates in directory based on first 5 columns:

I have /tmp dir with filename as: 010020001_S-FOR-Sort-SYEXC_20160229_2212101.marker 010020001_S-FOR-Sort-SYEXC_20160229_2212102.marker 010020001-S-XOR-Sort-SYEXC_20160229_2212104.marker 010020001-S-XOR-Sort-SYEXC_20160229_2212105.marker 010020001_S-ZOR-Sort-SYEXC_20160229_2212106.marker... (4 Replies)
Discussion started by: gnnsprapa
4 Replies

10. Shell Programming and Scripting

Concatenate and sort to remove duplicates

Following is the input. 1st and 3rd block are same(block starts here with '*' and ends before blank line) , 2nd and 4th blocks are also the same: cat <file> * Wed Feb 24 2016 Tariq Saeed <tariq.x.saeed@mail.com> 2.0.7-1.0.7 - add vmcore dump support for ocfs2 * Mon Jun 8 2015 Brian Maly... (4 Replies)
Discussion started by: Paras Pandey
4 Replies
IRSEND(1)							   User Commands							 IRSEND(1)

NAME
irsend - basic LIRC program to send infra-red commands SYNOPSIS
irsend [options] DIRECTIVE REMOTE CODE [CODE...] DESCRIPTION
Asks the lircd daemon to send one or more CIR (Consumer Infra-Red) commands. This is intended for remote control of electronic devices such as TV boxes, HiFi sets, etc. DIRECTIVE can be: SEND_ONCE - send CODE [CODE ...] once SEND_START - start repeating CODE SEND_STOP - stop repeating CODE LIST - list configured remote items SET_TRANSMITTERS - set transmitters NUM [NUM ...] SIMULATE - simulate IR event REMOTE is the name of a remote, as described in the lircd configuration file. CODE is the name of a remote control key of REMOTE, as it appears in the lircd configuration file. NUM is the transmitter number of the hardware device. For the LIST DIRECTIVE, REMOTE and/or CODE can be empty: LIST "" "" - list all configured remote names LIST REMOTE "" - list all codes of REMOTE LIST REMOTE CODE - list only CODE of REMOTE The SIMULATE command only works if it has been explicitly enabled in lircd. -h --help display usage summary -v --version display version -d --device use given lircd socket [/var/run/lirc/lircd] -a --address=host[:port] connect to lircd at this address -# --count=n send command n times EXAMPLES
irsend LIST DenonTuner "" irsend SEND_ONCE DenonTuner PROG-SCAN irsend SEND_ONCE OnkyoAmpli VOL-UP VOL-UP VOL-UP VOL-UP irsend SEND_START OnkyoAmpli VOL-DOWN ; sleep 3 irsend SEND_STOP OnkyoAmpli VOL-DOWN irsend SET_TRANSMITTERS 1 irsend SET_TRANSMITTERS 1 3 4 irsend SIMULATE "0000000000000476 00 OK TECHNISAT_ST3004S" FILES
/etc/lirc/lircd.conf Default lircd configuration file. It should contain all the remotes, their infra-red codes and the corresponding timing and wave- form details. DIAGNOSTICS
If lircd is not running (or /var/run/lirc/lircd lacks write permissions) irsend aborts with the following diagnostics: "irsend: could not connect to socket" "irsend: Connection refused" (or "Permission denied"). SEE ALSO
The documentation for lirc is maintained as html pages. They are located under html/ in the documentation directory. lircd(8), mode2(1), smode2(1), xmode2(1), irrecord(1), irw(1), http://www.lirc.org. irsend 0.9.0-pre1 October 2010 IRSEND(1)
All times are GMT -4. The time now is 02:27 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy