Sponsored Content
Full Discussion: Extracting columns
Top Forums Shell Programming and Scripting Extracting columns Post 302359771 by danmero on Wednesday 7th of October 2009 10:49:35 AM
Old 10-07-2009
Code:
yum -e0 -d0 check-update| gawk '{print $1 $2}'

 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Extracting columns from different files for later merging

Hello! I wan't to extract columns from two files and later combine them for plotting with gnuplot. If the files file1 and file2 look like: fiile1: a, 0.62,x b, 0.61,x file2: a, 0.43,x b, 0,49,x The desired output is a 0.62 0.62 b 0.61 0.49 Thank you in advance! (2 Replies)
Discussion started by: kingkong
2 Replies

2. Shell Programming and Scripting

Need help in extracting columns

Hi , I have a file having around 8 columns spereated by space . Now that I need to extract columns from this. The problem is this functionality is needed in a script and the required columns are dynamic and can range from 2 columns to 8 columns at a time . What I tried without luck is ... (6 Replies)
Discussion started by: praveenbvarrier
6 Replies

3. Shell Programming and Scripting

extracting multiple consecutive columns using awk

Hello, I have a matrix 200*10,000 and I need to extract the columns between 40 and 77. I dont want to write in awk all the columns. eg: awk '{print $40, $41, $42,$43 ... $77}'. I think should exist a better way to do this. (10 Replies)
Discussion started by: auratus42
10 Replies

4. Shell Programming and Scripting

extracting columns with awk

Friends, I have a file with fileds in the following order sda 4.80 114.12 128.69 978424 1103384 sdb 0.03 0.40 0.00 3431 0 sda 1.00 0.00 88.00 0 176 sdb ... (14 Replies)
Discussion started by: achak01
14 Replies

5. Shell Programming and Scripting

Extracting only a few columns!!!?

Hi All, I have a text file which looks like below. ################################################ Name:xxxxxxx Version:1.0 Class: 2 City : Bangalore Component Part Action Nb New Part Naming Part Name 12345 default 12345.12345 Bad 23456 ... (6 Replies)
Discussion started by: smarty86
6 Replies

6. Shell Programming and Scripting

extracting columns from 2 files

Hello, I have 2 files file1 & file2 = a1 b1 a2 b2 a3 b3 ... = c1 d1 c2 d2 c3 d3 ... I need to compare if b(i)=c(j) . i,j=1,2,3,4,... If yes, right a(i) d(j) in output file3 per line (1 Reply)
Discussion started by: newpromo
1 Replies

7. Shell Programming and Scripting

Using columns from 2 files and extracting string

Hi All, I have 2 files with a common column. File 1 looks like NAME START POS1 POS2 N1 1234 1236 1237 N2 1245 1248 1250 .. .. File 2 looks like NAME STRING N1 ABCDEFGH N2 EFGHBCD N3 PQRSSTUV .. ...... ... (25 Replies)
Discussion started by: alpesh
25 Replies

8. UNIX Desktop Questions & Answers

Extracting only unique data between two columns

:wall:Hi there, I am trying to extract/filter a unique data between specific columns from a tab deliminated file, that has a number of columns: input file as follow: 5 rs1 70 A C 7 1 1 Blue 5 rs9 66 A E ... (2 Replies)
Discussion started by: houkto
2 Replies

9. Shell Programming and Scripting

Extracting wanted columns

Suppose file1 1 3 8 9 file2 1 2 3 4 5 6 7 8 9 10 1 0 1 0 1 0 1 0 1 0 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 I want to print columns listed in file 1 from file2. so the output will look like 1 3 8 9 1 1 0 1 (3 Replies)
Discussion started by: johnkim0806
3 Replies

10. Shell Programming and Scripting

Extracting multiple columns with awk

Hi everyone!! I need to apply a simple command to extract columns from a matrix, but I need to extract contemporary from the first to the tenth columns, than from the eleventh to the twentyth and so on... how can i do that? (1 Reply)
Discussion started by: gabrysfe
1 Replies
cut(1)							      General Commands Manual							    cut(1)

Name
       cut - cut out selected fields of each line of a file

Syntax
       cut -clist [file1 file2...]
       cut -flist [-dchar] [-s] [file1 file2...]

Description
       Use  the  command to cut out columns from a table or fields from each line of a file.  The fields as specified by list can be fixed length,
       that is, character positions as on a punched card (-c option), or the length can vary from line to line and be marked with a  field  delim-
       iter character like tab (-f option).  The command can be used as a filter.  If no files are given, the standard input is used.

       Use to make horizontal ``cuts'' (by context) through a file, or to put files together in columns.  To reorder columns in a table, use and

Options
       list	   Specifies  ranges  that must be a comma-separated list of integer field numbers in increasing order.  With optional - indicates
		   ranges as in the -o option of nroff/troff for page ranges; for example, 1,4,7; 1-3,8; -5,10 (short for 1-5,10);  or	3-  (short
		   for third through last field).

       -clist	   Specifies character positions to be cut out.  For example, -c1-72 would pass the first 72 characters of each line.

       -flist	   Specifies  the  fields  to be cut out.  For example, -f1,7 copies the first and seventh field only.	Lines with no field delim-
		   iters are passed through intact (useful for table subheadings), unless -s is specified.

       -dchar	   Uses the specified character as the field delimiter.  Default is tab.  Space or other characters with special  meaning  to  the
		   shell must be quoted.  The -d option is used only in combination with the -f option, according to XPG3 and SVID2/SVID3.

       -s	   Suppresses  lines  with  no	delimiter  characters.	 Unless  specified, lines with no delimiters are passed through untouched.
		   Either the -c or -f option must be specified.

Examples
       Mapping of user IDs to names:
       cut -d: -f1,5 /etc/passwd
       To set name to the current login name for the csh shell:
       set name=`who am i | cut -f1 -d" "`
       To set name to the current login name for the sh, sh5, and ksh shells:
       name=`who am i | cut -f1 -d" "`

Diagnostics
       "line too long"	   A line can have no more than 511 characters or fields.

       "bad list for c/f option"
			   Missing -c or -f option or incorrectly specified list.  No error occurs if a line has fewer fields than the list  calls
			   for.

       "no fields"	   The list is empty.

See Also
       grep(1), paste(1)

																	    cut(1)
All times are GMT -4. The time now is 04:25 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy