Sponsored Content
Full Discussion: awk last n lines of file
Top Forums Shell Programming and Scripting awk last n lines of file Post 302907133 by Don Cragun on Thursday 26th of June 2014 05:25:40 AM
Old 06-26-2014
Sorry. I apologize for wasting our time. I wish you the best of luck in your project.
 

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

Help with splitting lines in a file using awk

I have a file which is one big long line of text about 10Kb long. Can someone provide a way using awk to introduce carriage returns every 40 chars in this file. Any other solutions would also be welcome. Thank you in advance. (5 Replies)
Discussion started by: martinbarretto
5 Replies

2. Shell Programming and Scripting

Select some lines from a txt file and create a new file with awk

Hi there, I have a text file with several colums separated by "|;#" I need to search the file extracting all columns starting with the value of "1" or "2" saving in a separate file just the first 7 columns of each row maching the criteria, with replacement of the saparators in the nearly created... (4 Replies)
Discussion started by: capnino
4 Replies

3. UNIX for Dummies Questions & Answers

How do you subtotal lines in a file? Awk?

I have a file with 8 fields. I need the subtotals for fields 7 & 8 when field 5 changes. cat wk1 01/02/2011/18AB/17/18/000000071/000000033 01/02/2011/18AB/17/18/000000164/000000021 01/02/2011/18AB/17/18/000000109/000000023 01/02/2011/28FB/04/04/000000000/000000000... (2 Replies)
Discussion started by: MS75001
2 Replies

4. Shell Programming and Scripting

awk print lines in a file

Dear All, a.txt A 1 Z A 1 ZZ B 2 Y B 2 AA how can i use awk one line to achieve the result: A Z|ZZ B Y|AA Thanks (5 Replies)
Discussion started by: jimmy_y
5 Replies

5. Shell Programming and Scripting

Reducing file lines in awk

Hi, Here i have to check first record $3 $4 with second record $1 $2 respectively. If match found, then check first record $2 == second record $4 , if it equals , then reduce two records to single record like as desired output. Input_file 1 1 2 1 2 1 3 1 3 1 4 1 3 1 3 2 desired... (3 Replies)
Discussion started by: vasanth.vadalur
3 Replies

6. Shell Programming and Scripting

Read a file using awk for a given no of lines.

Hi, how do i read a file using awk for a given no of line? e.g 1. read only first 50 line. 2. read starting from line 20 to line 60.. thanks in advance. -alva (8 Replies)
Discussion started by: alvagenesis
8 Replies

7. Shell Programming and Scripting

Counting lines in a file using awk

I want to count lines of a file using AWK (only) and not in the END part like this awk 'END{print FNR}' because I want to use it. Does anyone know of a way? Thanks a lot. (7 Replies)
Discussion started by: guitarist684
7 Replies

8. Shell Programming and Scripting

awk remove/grab lines from file with pattern from other file

Sorry for the weird title but i have the following problem. We have several files which have between 10000 and about 500000 lines in them. From these files we want to remove lines which contain a pattern which is located in another file (around 20000 lines, all EAN codes). We also want to get... (28 Replies)
Discussion started by: SDohmen
28 Replies

9. Shell Programming and Scripting

awk to reorder lines in file

The output of an awk script is the below file. Line 1,3 that starts with the Ion... need to be under line 2,4 that starts with R_. The awk runs but no output results. Thank you :). file IonXpress_007 MEV37 R_2016_09_20_12_47_36_user_S5-00580-7-Medexome IonXpress_007 MEV40... (6 Replies)
Discussion started by: cmccabe
6 Replies

10. UNIX for Beginners Questions & Answers

awk to average matching lines in file

The awk below executes and is close (producing the first 4 columns in desired). However, when I add the sum of $7, I get nothing returned. Basically, I am trying to combine all the matching $4 in f1 and output them with the average of $7 in each match. Thank you :). f1 ... (2 Replies)
Discussion started by: cmccabe
2 Replies
PYP(1)							      General Commands Manual							    PYP(1)

NAME
pyp - The Pyed Piper: A Modern Python Alternative to awk, sed and Other Unix Text Manipulation Utilities SYNOPSIS
pyp [options] files ... DESCRIPTION
pyp, the Pyed Piper, is a command line tool for text manipulation. It is similar to awk and sed in functionality, but its subcommands are Python based, and thus more familiar to many programmers. It can operate both on a per-line base and on the complete input stream. Different features can be pipelined in a single command by using the pipe character familiar from shell commands. pyp backs up its input for reruns with modified commands, and can save commands as macros. On the downside, the rerun feature makes it unsuitable for continuous pipe operation. OPTIONS
These programs follow the usual GNU command line syntax, with long options starting with two dashes (`-'). A summary of options is included below. For a complete description, use --manual. -h, --help Show this help message and exit. -m, --manual Prints out extended help. -l, --macro_list Lists all available macros. -s MACRO_SAVE_NAME, --macro_save=MACRO_SAVE_NAME Saves current command as macro. use "#" for adding comments EXAMPLE: pyp -s "great_macro # prints first letter" "p[1]". -f MACRO_FIND_NAME, --macro_find=MACRO_FIND_NAME Searches for macros with keyword or user name. -d MACRO_DELETE_NAME, --macro_delete=MACRO_DELETE_NAME Deletes specified public macro. -g, --macro_group Specify group macros for save and delete; default is user. -t TEXT_FILE, --text_file=TEXT_FILE Specify text file to load. For advanced users, you should typically cat a file into pyp. -x, --execute Execute all commands. -c, --turn_off_color Prints raw, uncolored output. -u, --unmodified_config Prints out generic PypCustom.py config file. -b BLANK_INPUTS, --blank_inputs=BLANK_INPUTS Generate this number of blank input lines; useful for generating numbered lists with variable 'n'. -n, --no_input Use with command that generates output with no input; same as --dummy_input 1. -k, --keep_false Print blank lines for lines that test as False. default is to filter out False lines from the output. -r, --rerun Rerun based on automatically cached data from the last run. Use this after executing "pyp", pasting input into the shell, and hitting CTRL-D. SEE ALSO
awk(1), grep(1), sed(1). AUTHOR
pyp was written by Toby Rosen <tobyrosen@gmail.com>. This manual page was written by Khalid El Fathi <khalid@elfathi.fr>, for the Debian project (and may be used by others). March 19, 2012 PYP(1)
All times are GMT -4. The time now is 08:57 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy