Sponsored Content
Top Forums Shell Programming and Scripting How to sort a file and then print similar lines once Post 302280706 by shira on Tuesday 27th of January 2009 12:06:19 PM
Old 01-27-2009
ok, now I checked it, and the problem was that I didn't redirect the whole command into another file. So thanks. Smilie

This is what I wrote and it worked:

Code:
sort -n file | uniq > temp

Why can't I change the original file? Is there any way I can?
 

10 More Discussions You Might Find Interesting

1. Infrastructure Monitoring

Remove Similar Lines from a File

I have a log file "logreport" that contains several lines as seen below: 04:20:00 /usr/lib/snmp/snmpdx: Agent snmpd appeared dead but responded to ping 06:38:08 /usr/lib/snmp/snmpdx: Agent snmpd appeared dead but responded to ping 07:11:05 /usr/lib/snmp/snmpdx: Agent snmpd appeared dead... (4 Replies)
Discussion started by: Nysif Steve
4 Replies

2. Shell Programming and Scripting

Counting similar lines from file UNIX

I have a file which contains data as below: nbk1j7o pageName=/jsp/RMBS/RMBSHome.jsf nbk1j7o pageName=/jsp/RMBS/RMBSHome.jsf nbk1j7o pageName=/jsp/RMBS/RMBSHome.jsf nbk1j7o pageName=/jsp/RMBS/RMBSHome.jsf nbk1j7o pageName=/jsp/common/index.jsf nbk1j7o pageName=/jsp/common/index.jsf nbk1wqe... (6 Replies)
Discussion started by: mohsin.quazi
6 Replies

3. Shell Programming and Scripting

remove one of each similar lines in a file

Hello folks I have a question for you gurus of sed or grep (maybe awk, but I would prefer the first two) I have a file (f1) that says: (actually, these are not numbers but md5sum, but for simplicity, let's assume these numbers.) 1 2 3 4 5And I have a file (f2) that says 1|a 1|b 1|c 2|d... (3 Replies)
Discussion started by: tukuyomi
3 Replies

4. UNIX for Dummies Questions & Answers

merge lines within a file that start with a similar pattern

Hello! i have a text file.. which contains the data as follows i want to merge the declarations lines pertaining to one datatype in to a single line as follows i've searched the forum for help.. but couldn't find much help.. how can i do this?? (1 Reply)
Discussion started by: a_ba
1 Replies

5. UNIX for Dummies Questions & Answers

Matching and reporting near-similar lines in a file

Hi, I have a file with the lines as below: C_10_A05_T7 C_10_A06_SP6 C_10_B05_SP6 C_10_B05_T7 C_10_B01_SP6 C_10_B01_T7 C_12_G07_SP6 C_12_G11_SP6 C_12_G11_T7 C_2_H18_T7 C_2_I02_SP6 C_2_I02_T7 C_2_I13_SP6 C_2_I17_SP6 The four segments of each line are connected by '_' symbols. I... (7 Replies)
Discussion started by: Fahmida
7 Replies

6. Shell Programming and Scripting

extracting lines from a file with similar first name

consider i have two files cat onlyviews1.sql CREATE VIEW V11 AS SELECT id, name, FROM etc etc WHERE etc etc; CREATE VIEW V22 AS SELECT id, name, FROM etc etc WHERE etc etc; CREATE VIEW V33 AS (10 Replies)
Discussion started by: vivek d r
10 Replies

7. Shell Programming and Scripting

removing lines with similar values from file

Hello, got a file with this structure: 33274 171030 02/29/2012 37897 P_GEH 2012-02-29 10:31:26 33275 171049 02/29/2012 38132 P_GEH 2012-02-29 10:35:27 33276 171058 02/29/2012 38515 P_GEH 2012-02-29 10:43:26 33277 170748 02/29/2012 40685 P_KOM ... (3 Replies)
Discussion started by: krecik28
3 Replies

8. Shell Programming and Scripting

Reducing text file using similar lines

Hello, I am a java programmer but want to try unix for a purpose where I need to reduce a file using its first field.. Here is the sample data: admin;2;0;; admission;8;0;; aman;1;0;; caroline;0;4;; cook;0;4;; cook;2;0;; far;0;3;; far;1;5;; I am explaining the dataset first. There... (5 Replies)
Discussion started by: shekhar2010us
5 Replies

9. Shell Programming and Scripting

Uniq or sort -u or similar only between { }

Hi ! I am trying to remove doubbled entrys in a textfile only between delimiters. Like that example but i dont know how to do that with sort or similar. input: { aaa aaa } { aaa aaa } output: { aaa } { (8 Replies)
Discussion started by: fugitivus
8 Replies

10. UNIX for Dummies Questions & Answers

awk - (URGENT!) Print lines sort and move lines if match found

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
SORT(1) 						      General Commands Manual							   SORT(1)

NAME
sort - sort a file of ASCII lines SYNOPSIS
sort [-bcdfimnru] [-tc] [-o name] [+pos1] [-pos2] file ... OPTIONS
-b Skip leading blanks when making comparisons -c Check to see if a file is sorted -d Dictionary order: ignore punctuation -f Fold upper case onto lower case -i Ignore nonASCII characters -m Merge presorted files -n Numeric sort order -o Next argument is output file -r Reverse the sort order -t Following character is field separator -u Unique mode (delete duplicate lines) EXAMPLES
sort -nr file # Sort keys numerically, reversed sort +2 -4 file # Sort using fields 2 and 3 as key sort +2 -t: -o out # Field separator is : sort +.3 -.6 # Characters 3 through 5 form the key DESCRIPTION
Sort sorts one or more files. If no files are specified, stdin is sorted. Output is written on standard output, unless -o is specified. The options +pos1 -pos2 use only fields pos1 up to but not including pos2 as the sort key, where a field is a string of characters delim- ited by spaces and tabs, unless a different field delimiter is specified with -t. Both pos1 and pos2 have the form m.n where m tells the number of fields and n tells the number of characters. Either m or n may be omitted. SEE ALSO
comm(1), grep(1), uniq(1). SORT(1)
All times are GMT -4. The time now is 10:58 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy