Sponsored Content
Top Forums Shell Programming and Scripting Finding lines of specific size in files using sed Post 303017469 by boncuk on Wednesday 16th of May 2018 12:54:19 PM
Old 05-16-2018
no it didnt help .. if i try to use "!" i get unknown command Smilie

sed -n '!/^.\{20,21\}$/p' a.a
sed: Unknown command

---------- Post updated at 12:54 PM ---------- Previous update was at 12:36 PM ----------

i just noticed that my original command is flawed too .. its failing in this particular scenario , notice its showing the line that is not 21 ?

I just need a sed command that will give me all lines that are not exactly 21 .

Code:
type a.a
000008050110010201NNN
000008060810010201NNN
21212000008070110010201NNN
000008080310010201NNN
000008090510010201NNN
000008050110010201NNN
000008060310010201NNN
00008070110010201NNN
SUMM0001583381

$ sed -n '/^.\{20,21\}$/p' a.a
000008050110010201NNN
000008060810010201NNN
000008080310010201NNN
000008090510010201NNN
000008050110010201NNN
000008060310010201NNN
00008070110010201NNN

 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Finding a specific pattern from thousands of files ????

Hi All, I want to find a specific pattern from approximately 400000 files on solaris platform. Its very heavy for me to grep that pattern to each file individually. Can anybody suggest me some way to search for specific pattern (alpha numeric) from these forty thousand files. Please note that... (6 Replies)
Discussion started by: aarora_98
6 Replies

2. Shell Programming and Scripting

finding duplicate files by size and finding pattern matching and its count

Hi, I have a challenging task,in which i have to find the duplicate files by its name and size,then i need to take anyone of the file.Then i need to open the file and find for more than one pattern and count of that pattern. Note:These are the samples of two files,but i can have more... (2 Replies)
Discussion started by: jerome Sukumar
2 Replies

3. Shell Programming and Scripting

Finding cumulative size of files older than certain days

Hi All, I've got a ton of files in a particular directory. I want to find pdf files older than 30 days in that directory and then the cumulative size of those files. Ex: find /home/jk/a -name "*.pdf" -mtime +30 consider it finds the below 4 files. /home/jk/a/1.pdf /home/jk/a/2.pdf... (1 Reply)
Discussion started by: rohan076
1 Replies

4. UNIX for Dummies Questions & Answers

help with finding specific files

before i get to it, i would like to say this is the greatest unix site ive ever seen, and im glad to see so many people are out there to help. thanks well, im trying to make myself a script where i can specify a directory and a file size so that my script will show me any files larger than the... (5 Replies)
Discussion started by: linuxlaptop
5 Replies

5. Shell Programming and Scripting

Summing over specific lines and replacing the lines with the sum using sed, awk

Hi friends, This is sed & awk type question. I have a text file which has numbers spread all over the file. I want to sum the series of numbers whenever i find it and produce an output file with the sum. For example ###start of input text file #### abc def ghi 1 2 3 4 kjld random... (3 Replies)
Discussion started by: kaaliakahn
3 Replies

6. Shell Programming and Scripting

Finding 4 current files having specific File Name pattern

Hi All, I am trying to find 4 latest files inside one folder having following File Name pattern and store them into 4 different variables and then use for processing in my shell script. File name is fixed length. 1) Each file starts with = ABCJmdmfbsjop letters + 7 Digit Number... (6 Replies)
Discussion started by: lancesunny
6 Replies

7. Shell Programming and Scripting

Finding size of files with spaces in their file names

I am running a UNIX script to get unused files and their sizes from the server. The issue is arising due to the spaces present in the filename/folder names.Due to this the du -k command doesn't work properly.But I need to calculate the size of all files including the ones which have spaces in them.... (4 Replies)
Discussion started by: INNSAV1
4 Replies

8. Shell Programming and Scripting

ksh sed - Extract specific lines with mulitple occurance of interesting lines

Data file example I look for primary and * to isolate the interesting slot number. slot=`sed '/^primary$/,/\*/!d' filename | tail -1 | sed s'/*//' | awk '{print $1" "$2}'` Now I want to get the Touch line for only the associate slot number, in this case, because the asterisk... (2 Replies)
Discussion started by: popeye
2 Replies

9. UNIX for Dummies Questions & Answers

Finding Files only under a specific FileSystem

Hi, I am using AIX and one of my file systems is getting filled up and I need to track with files are occupying more volume. Filesystem GB blocks Free %Used Iused %Iused Mounted on /dev/nhdb_lv 2110.00 63.80 97% 76525 1% /nhdb under the Mount Point /nhdb... (1 Reply)
Discussion started by: zulfi123786
1 Replies

10. UNIX for Beginners Questions & Answers

How to print lines from a files with specific start and end patterns and pick only the last lines?

Hi, I need to print lines which are matching with start pattern "SELECT" and END PATTERN ";" and only select the last "select" statement including the ";" . I have attached sample input file and the desired input should be as: INPUT FORMAT: SELECT ABCD, DEFGH, DFGHJ, JKLMN, AXCVB,... (5 Replies)
Discussion started by: nani2019
5 Replies
TAIL(1) 						      General Commands Manual							   TAIL(1)

NAME
tail - deliver the last part of a file SYNOPSIS
tail [ +-number[lbc][rf] ] [ file ] tail [ -fr ] [ -n nlines ] [ -c nbytes ] [ file ] DESCRIPTION
Tail copies the named file to the standard output beginning at a designated place. If no file is named, the standard input is copied. Copying begins at position +number measured from the beginning, or -number from the end of the input. Number is counted in lines, 1K blocks or bytes, according to the appended flag or Default is -10l (ten ell). The further flag causes tail to print lines from the end of the file in reverse order; (follow) causes tail, after printing to the end, to keep watch and print further data as it appears. The second syntax is that promulgated by POSIX, where the numbers rather than the options are signed. EXAMPLES
tail file Print the last 10 lines of a file. tail +0f file Print a file, and continue to watch data accumulate as it grows. sed 10q file Print the first 10 lines of a file. SOURCE
/src/cmd/tail.c BUGS
Tails relative to the end of the file are treasured up in a buffer, and thus are limited in length. According to custom, option +number counts lines from 1, and counts blocks and bytes from 0. Tail is ignorant of UTF. TAIL(1)
All times are GMT -4. The time now is 07:18 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy