Grep in specific columns Post: 302927508

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Replace specific columns

hi All, Thi sis very urgent. I have large files with pipe delimited. For example: 1.txt 1001024|120|9|-0.0|#| 1001025|120|9|#| 1001026|120|9|#| 1001032|120|2|-0.0|#| 1002026|110|9|#| 1002027|110|9|-0.0|#| 1002028|120|1|1.0|#| I need to replace the 4th filed if it is # by |-| my...

2. Shell Programming and Scripting

Grep based on specific columns.

Hi, How can I grep a record for a value based on specific column. If I simply do a grep 'AB' FilenName.txt, I might end up getting the records returned whose part of value is 'AB'. But I want it specific to second column. cut -d'|' -f 2 FileName.txt | grep 'AB' But now it will return...

3. Shell Programming and Scripting

Mean of the specific columns

I have a input file that has some common values in 1st,2nd and 3rd columns. 4th and 5th are different. Now I would like to print the mean of the fourth column of similar values in 1st.2nd and 3rd columns along with all the values in 5th column. input NM_0 1.22 CR5 0.4 n_21663...

4. Shell Programming and Scripting

Replace specific columns in one file with columns in another file

HELLO! This is my first post here! By the way, I think it is great that people do this. My question: I have two files, one is a .dilm and one is a .txt. It is my understanding that the .dilm file can be treated as a .txt file. I wrote another program where I was able to manipulate it as if it...

5. Homework & Coursework Questions

ls in specific columns

Hello, i need to get the ls output in 2 columns.1st column the directories and 2nd the files... Also each column must be sorted by time... For example if the >>ls command gives me this : /dir2 /dir /dir1 /dir3 file1 file2 I need to take this : /dir file1 /dir1 ...

6. Shell Programming and Scripting

Deleting specific columns

Hi group, Can you please tell how to delete specific columns from a file. I know something like awk -F, '{ print $1" "$2" "15 }' input.txt > output.txt will delete all other columns. But this is in a way to copy some particular columns. But is there any other way to select just some...

7. Shell Programming and Scripting

Can't figure out how to find specific characters in specific columns

I am trying to find a specific set of characters in a long file. I only want to find the characters in column 265 for 4 bytes. Is there a search for that? I tried cut but couldn't get it to work. Ex. I want to find '9999' in column 265 for 4 bytes. If it is in there, I want it to print...

8. UNIX for Dummies Questions & Answers

Printing lines with specific strings at specific columns

Hi I have a file which is tab-delimited. Now, I'd like to print the lines which have "chr6" string in both first and second columns. Could anybody help?

9. UNIX for Dummies Questions & Answers

Intersection by specific columns

Hi, I'd like to intersect two files by the 4th col of the first file and 6th col of the second file. This is the code I use: awk 'NR==FNR{A;next}$6 File1 File2 However, this is only outputting the second file lines. I'd like to have both lines in a single line separated by a tab. Thanks in...

10. Shell Programming and Scripting

Merge specific columns of two files

Hello, I have two tab delimited text files. Both files have the same number of rows but not necessarily the same number of columns. The column headers look like, File 1: f0order CVorder Name f0 RI_9 E99 E199 E299 E399 E499 E599 E699 E799 E899 E999 File 2:...

LEARN ABOUT FREEBSD

colrm

COLRM(1)						    BSD General Commands Manual 						  COLRM(1)

NAME

     colrm -- remove columns from a file

SYNOPSIS

     colrm [start [stop]]

DESCRIPTION

     The colrm utility removes selected columns from the lines of a file.  A column is defined as a single character in a line.  Input is read
     from the standard input.  Output is written to the standard output.

     If only the start column is specified, columns numbered less than the start column will be written.  If both start and stop columns are spec-
     ified, columns numbered less than the start column or greater than the stop column will be written.  Column numbering starts with one, not
     zero.

     Tab characters increment the column count to the next multiple of eight.  Backspace characters decrement the column count by one.

ENVIRONMENT

     The LANG, LC_ALL and LC_CTYPE environment variables affect the execution of colrm as described in environ(7).

EXIT STATUS

     The colrm utility exits 0 on success, and >0 if an error occurs.

SEE ALSO

     awk(1), column(1), cut(1), paste(1)

HISTORY

     The colrm command appeared in 3.0BSD.

BSD
								  August 4, 2004							       BSD