(this shows the commands the current logged-in user has run)
A pipe (the | character) feeds the output of one command as input to the next command, so...
Code:
history | cut -c 8-100
Will "feed" the output of the history command into the cut command.
(if you'd read the man pages as suggested, you'd know how cut works - this takes characters 8 through to 100)
sort will, sort the output of it's input (the output of the cut command - alphabetically.
uniq -c will remove duplicated (on sorted date - the previous command did that), and show the count (-c).
Does anybody know a command that filters duplicate lines out of a file. Similar to the uniq command but can handle duplicate lines no matter where they occur in a file? (9 Replies)
Hi all! Im wondering if its possible to remove all lines between two lines. Im working with a document like this:
data1
data2
<Remove>
data3
data4
</Remove>
data5
data6
I need it to end up like this if that possible:
data1
data2
data5
data6
There are multiple instances of... (2 Replies)
I received this question for homework:
We have to write our program into a .sh file, with "#!/bin/bash" as the first line. And we have the list of access logs in a file, looking like this (it's nearly 10,000 lines long):
65.214.44.112 - - "GET /~user0/cgg/msg08400.html HTTP/1.0" 304 -... (1 Reply)
Hi All,
I have a very huge file (4GB) which has duplicate lines. I want to delete duplicate lines leaving unique lines. Sort, uniq, awk '!x++' are not working as its running out of buffer space.
I dont know if this works : I want to read each line of the File in a For Loop, and want to... (16 Replies)
Hi All,
I am trying to filter out a txt file containing 2 columns. Which has got website name and response time as below.
Website_name response_time
yahoo 22
google 21
yahoo 34
rediff 45
google 43
rediff 31
I want filter the above file with unique website names which has got highest... (5 Replies)
I have a table to data which one of the columns include string of text
from within that, I am searching to include few lines but not others
for example I want to to include some combination of word address such as (address.| address? |the address | your address) but not (ip address | email... (17 Replies)
Hello to all, happy new year 2013!
May somebody could help me, is about a very similar problem to the problem I've posted here where the member rdrtx1 and bipinajith helped me a lot.
https://www.unix.com/shell-programming-scripting/211147-map-values-blocks-single-line-2.html
It is very... (3 Replies)
Hi Guys,
Would need your expert help with the following situation..
I have a comma seperated .csv file, with a header row and data as follows
H1,H2,H3,H4,H5..... (header row)
0,0,0,0,0,1,2.... (data rows follow)
0,0,0,0,0,0,1
.........
.........
i need a code... (10 Replies)
Experts Good day,
I want to filter multiple lines of same error of same day , to only 1 error of each day, the first line from the log.
Here is the file:
May 26 11:29:19 cmihpx02 vmunix: NFS write failed for server cmiauxe1: error 5 (RPC: Timed out)
May 26 11:29:19 cmihpx02 vmunix: NFS... (4 Replies)
I would like to print unique lines without sort or unique. Unfortunately the server I am working on does not have sort or unique. I have not been able to contact the administrator of the server to ask him to add it for several weeks. (7 Replies)
Discussion started by: cokedude
7 Replies
LEARN ABOUT REDHAT
cut
CUT(1) FSF CUT(1)NAME
cut - remove sections from each line of files
SYNOPSIS
cut [OPTION]... [FILE]...
DESCRIPTION
Print selected parts of lines from each FILE to standard output.
Mandatory arguments to long options are mandatory for short options too.
-b, --bytes=LIST
output only these bytes
-c, --characters=LIST
output only these characters
-d, --delimiter=DELIM
use DELIM instead of TAB for field delimiter
-f, --fields=LIST
output only these fields; also print any line that contains no delimiter character, unless the -s option is specified
-n with -b: don't split multibyte characters
-s, --only-delimited
do not print lines not containing delimiters
--output-delimiter=STRING
use STRING as the output delimiter the default is to use the input delimiter
--help display this help and exit
--version
output version information and exit
Use one, and only one of -b, -c or -f. Each LIST is made up of one range, or many ranges separated by commas. Each range is one of:
N N'th byte, character or field, counted from 1
N- from N'th byte, character or field, to end of line
N-M from N'th to M'th (included) byte, character or field
-M from first to M'th (included) byte, character or field
With no FILE, or when FILE is -, read standard input.
AUTHOR
Written by David Ihnat, David MacKenzie, and Jim Meyering.
REPORTING BUGS
Report bugs to <bug-coreutils@gnu.org>.
COPYRIGHT
Copyright (C) 2002 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU-
LAR PURPOSE.
SEE ALSO
The full documentation for cut is maintained as a Texinfo manual. If the info and cut programs are properly installed at your site, the
command
info cut
should give you access to the complete manual.
cut (coreutils) 4.5.3 February 2003 CUT(1)