i want to print the column file using awk or cut in dynamic manner
like
trmp=2;temp1=1;temp3=2
awk 'BEGIN{OFS=IFS="\t"} {print $temp,$temp1,$temp3}' client_data.txt
or cut -f $temp1,$temp2,$temp3 -d"\t" file_name .
but it is showing error , In awk can i use variable as in printing... (36 Replies)
Hello,
Can someone please help me on this.:confused:
I have a file which has more than 1 million lines (XML file).
What I need is:
Search for "abcd" in the input file > output the result into a output.txt (colloum1)
Search for "efghi" in the input file > output the result in to... (3 Replies)
Hi I'm trying to loop through a small list of id's and then pull out a few columns if the id matches that found in column 2 of the larger file. I managed to get one command to work
awk -F " " '{if ($2 == '154080196') print $2,$3,$4}' tst.txt | less
However, when I try it in a for loop I... (3 Replies)
Hi everyone,
Ok here's the scenario.
I have a control file like this.
component1,file1,file2,file3,file4,file5
component2,file1,file2,file3,file4,file5I want to do a while loop here to read all files for each component.
file_count=2
while ]
do
file_name=`cat list.txt | grep... (2 Replies)
Hello,
I am trying to redirect files to a directory by using a config file. The config files is as such:
xxxxxx,ID,PathToDirectory
xxxxxx,ID2,PathToDirectory2
and so on...
I have a variable that should match one of these IDs. I want to load this config file into an awk array, and... (2 Replies)
Hello,
it would be great if someone can help me with the following:
I want to search for the rows from fileA in column 1 of fileB and output column 2 of fileB if found in fileC. In the moment I search within the complete file. How can I change the code so only column 1 is searched?
cat fileA... (7 Replies)
hi all,
how can i use grep or awk to clean the following input data:
n<>the<>96427210 861521305 123257583
n<>obj<>79634223 861521305 79634223
n<>nmod<>68404733 861521305 68422718
where the desired results is to remove all non-numeric characters?:
96427210 861521305 123257583 ... (5 Replies)
I have a question that I am at a loss to solve. I have 3 column tab-separated data, such as:
abs nmod+n+n-commitment-n 349.200023
abs nmod+n+n-a-commitment-n 333.306429
abs into+ns-j+vn-pass-rb-divide-v 295.57316
abs nmod+n+ns-commitment-n 182.085018
abs nmod+n+n-pledge-n ... (2 Replies)
Hi have a large spreadsheet which has 4 columns
APM00111803814 server_2 96085 Corp IT Desktop and Apps
APM00111803814 server_2 96085 Corp IT Desktop and Apps
APM00111803814 server_2 96034 Storage Mgmt Team
APM00111803814 server_2 96152 GWP... (6 Replies)
I am having trouble extracting the value in the columns declared in a variable. I have tried several different variation of awk but both give me the column number and not the actual value of that column.
Any suggestions?
Neither of the "extract" variables below are performing as desired
... (5 Replies)
Discussion started by: ncwxpanther
5 Replies
LEARN ABOUT PLAN9
truncate
TRUNCATE(1) User Commands TRUNCATE(1)NAME
truncate - shrink or extend the size of a file to the specified size
SYNOPSIS
truncate OPTION... FILE...
DESCRIPTION
Shrink or extend the size of each FILE to the specified size
A FILE argument that does not exist is created.
If a FILE is larger than the specified size, the extra data is lost. If a FILE is shorter, it is extended and the extended part (hole)
reads as zero bytes.
Mandatory arguments to long options are mandatory for short options too.
-c, --no-create
do not create any files
-o, --io-blocks
treat SIZE as number of IO blocks instead of bytes
-r, --reference=RFILE
base size on RFILE
-s, --size=SIZE
set or adjust the file size by SIZE bytes
--help display this help and exit
--version
output version information and exit
The SIZE argument is an integer and optional unit (example: 10K is 10*1024). Units are K,M,G,T,P,E,Z,Y (powers of 1024) or KB,MB,... (pow-
ers of 1000).
SIZE may also be prefixed by one of the following modifying characters: '+' extend by, '-' reduce by, '<' at most, '>' at least, '/' round
down to multiple of, '%' round up to multiple of.
AUTHOR
Written by Padraig Brady.
REPORTING BUGS
GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
Report truncate translation bugs to <http://translationproject.org/team/>
COPYRIGHT
Copyright (C) 2017 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO dd(1), truncate(2), ftruncate(2)
Full documentation at: <http://www.gnu.org/software/coreutils/truncate>
or available locally via: info '(coreutils) truncate invocation'
GNU coreutils 8.28 January 2018 TRUNCATE(1)