Sponsored Content
Top Forums Shell Programming and Scripting How to get the first column from the txt file using unix command? Post 302274749 by Patagonicus on Thursday 8th of January 2009 09:20:21 AM
Old 01-08-2009
I think he wants the third column, not the third row, so $3 is right, but the third column has spaces in it. You can use this:
Code:
awk '{ sub("^[^ ]* [^ ]* ", "") ; sub(" [^ ]*$", "") ; print }'

The first sub() deletes the first two columns ([^ ]* => everything except a space; as long as possible, then a space and the whole thing again). The second sub() deletes the last column and everything in between (=> third column) is printed.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Creating/ammending Name Column in existing .txt file

With the help of this forum, I have a script with the following output: chr7 27104483 27105154 chr7 27106872 27110789 chr7 27111956 27112830 chr7 27114388 27125180 chr7 27126966 27131260 chr7 27135440 27137796 which was created by the following script: awk '1 == NR || $NF >= 1000 {... (6 Replies)
Discussion started by: awknerd
6 Replies

2. Shell Programming and Scripting

AWK CSV to TXT format, TXT file not in a correct column format

HI guys, I have created a script to read 1 column in a csv file and then place it in text file. However, when i checked out the text file, it is not in a column format... Example: CSV file contains name,age aa,11 bb,22 cc,33 After using awk to get first column TXT file... (1 Reply)
Discussion started by: mdap
1 Replies

3. Shell Programming and Scripting

command to list .txt and .TXT file

Hi expersts, in my directory i have *.txt and *.TXT and *.TXT.log, *.txt.log I want list only .txt and .TXT files in one command... how to ?? //purple (1 Reply)
Discussion started by: thepurple
1 Replies

4. AIX

Adding column in a .txt file

Helle, I want to create a .ksh script in order to realize the following : I have a .txt file organized in a bloc of information, each bloc start with 000 as following: 000... 001... 003... 004... 000... 001... 003... 004... . . My aim is to add a new... (6 Replies)
Discussion started by: zainab2006
6 Replies

5. UNIX for Dummies Questions & Answers

how to add a constant value to a column in a file using unix command

I have a file like this 1 chr1 3661579 3662579 2 chr1 4350395 4351395 3 chr1 4399322 4400322 4 chr1 4486494 4487494 5 chr1 4775807 4776807 6 chr1 4775807 4776807 7 chr1 4775807 4776807 8 chr1 4796973 4797973 9 chr1 4846774 4847774... (3 Replies)
Discussion started by: sunsnow86
3 Replies

6. UNIX for Dummies Questions & Answers

Sorting a txt file that is a single column

How do you sort a text file that is made up of a single column? (sorting done in alphabetical order) Example input: MAP1S ISYNA1 STAT6 Example output: ISYNA1 MAP1S STAT6 (1 Reply)
Discussion started by: evelibertine
1 Replies

7. UNIX for Dummies Questions & Answers

Sorting a txt file that is a single column

How do you sort a text file that is made up of a single column? (sorting done in alphabetical order) Example input: MAP1S ISYNA1 STAT6 Example output: ISYNA1 MAP1S STAT6 Double post (0 Replies)
Discussion started by: evelibertine
0 Replies

8. UNIX for Dummies Questions & Answers

Add a new column to txt file containing filename

I would like help adding a new column to a large txt file (~10MB) that contains the filename. I have searched other posts but have not found an adequate solution. I need this extra column so I can concatenate >100 files and perform awk searches on this large file. My current txt file look... (4 Replies)
Discussion started by: kellywilliams
4 Replies

9. UNIX for Dummies Questions & Answers

how to generate random number as as the first column of a txt file

Dear all, I have a question. I have a txt file say 4000 rows X 1800 Column. I 'd like to creat a new column as the first column which is a column of random numbers (n=4000) thanks a lot! Lin (2 Replies)
Discussion started by: forevertl
2 Replies

10. Shell Programming and Scripting

Phrase txt file row to column

Hi Guys, I have one Big txt file and i what to phrase specific part as below. Input :- Event Event { recordLength 160118, recordType 411, eventId 3102118, INTERNAL_PER_RO_ME_TA { EVVXX_TIMESTAMP_HOUR 16, EVVXX_TIMESTAMP_MINUTE 15, EVVXX_TIMESTAMP_SECOND 3, ... (6 Replies)
Discussion started by: pareshkp
6 Replies
PSC(1)							      General Commands Manual							    PSC(1)

NAME
psc - prepare sc files SYNOPSIS
psc [-fLkrSPv] [-s cell] [-R n] [-C n] [-n n] [-d c] DESCRIPTION
Psc is used to prepare data for input to the spreadsheet calculator sc(1). It accepts normal ascii data on standard input. Standard out- put is a sc file. With no options, psc starts the spreadsheet in cell A0. Strings are right justified. All data on a line is entered on the same row; new input lines cause the output row number to increment by one. The default delimiters are tab and space. The column for- mats are set to one larger than the number of columns required to hold the largest value in the column. OPTIONS
-f Omit column width calculations. This option is for preparing data to be merged with an existing spreadsheet. If the option is not specified, the column widths calculated for the data read by psc will override those already set in the existing spreadsheet. -L Left justify strings. -k Keep all delimiters. This option causes the output cell to change on each new delimiter encountered in the input stream. The default action is to condense multiple delimiters to one, so that the cell only changes once per input data item. -r Output the data by row first then column. For input consisting of a single column, this option will result in output of one row with multiple columns instead of a single column spreadsheet. -s cell Start the top left corner of the spreadsheet in cell. For example, -s B33 will arrange the output data so that the spreadsheet starts in column B, row 33. -R n Increment by n on each new output row. -C n Increment by n on each new output column. -n n Output n rows before advancing to the next column. This option is used when the input is arranged in a single column and the spreadsheet is to have multiple columns, each of which is to be length n. -d c Use the single character c as the delimiter between input fields. -P Plain numbers only. A field is a number only when there is no imbedded [-+eE]. -S All numbers are strings. -v Print the version of psc SEE ALSO
sc(1) AUTHOR
Robert Bond PSC 7.16 19 September 2002 PSC(1)
All times are GMT -4. The time now is 12:43 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy