10 More Discussions You Might Find Interesting
1. UNIX for Beginners Questions & Answers
Hello,
I have two files of the following form. I would like to remove from File.A where the first three colum matches values in File.B to give the output in File.C
File.A
121 54321 PQR CAT
122 765431 ABC DOG
124 98765 ZXY TIGER
125 86432 GEF LION
File.B
122 765431 ABC
125 86432 GEF... (4 Replies)
Discussion started by: Gussifinknottle
4 Replies
2. UNIX for Beginners Questions & Answers
Hi,
I'd be grateful for your help with the following. I have a file (file.txt) with 10 columns and about half a million lines, which in simplified form looks like this:
ID Col1 Col2 Col3....
a 4 2 8
b 5 6 1
c 8 4 1
d... (4 Replies)
Discussion started by: aberg
4 Replies
3. Shell Programming and Scripting
I am trying to use the two files shown below to either remove or rename contents in one of those files. If in file1.txt $5 matches $5 of file2.txt and the value in $1 of file1.txt is not "No Match" then that value is substituted for all values in $5 and $1 of file2.txt. If however in $1 ... (5 Replies)
Discussion started by: cmccabe
5 Replies
4. Shell Programming and Scripting
Dear community,
I have to remove duplicate lines from a file contains a very big ammount of rows (milions?) based on 1st and 3rd columns
The data are like this:
Region 23/11/2014 09:11:36 41752
Medio 23/11/2014 03:11:38 4132
Info 23/11/2014 05:11:09 4323... (2 Replies)
Discussion started by: Lord Spectre
2 Replies
5. Shell Programming and Scripting
Good day all.
Using basic UNIX/Linux tools, how would you delete a line based on a character found in column 1?
For example, if the CITY name contains an 'a' or 'A', delete the line:
New York City; New York
Los Angeles; California
Chicago; Illinois
Houston; Texas
Philadelphia;... (3 Replies)
Discussion started by: BRH
3 Replies
6. Shell Programming and Scripting
I have two files, a keepout.txt and a database.csv. They're unsorted, but could be sorted.
keepout:
user1
buser3
anuser19
notheruser27
database:
user1,2343,"information about",field,blah,34
user2,4231,"mo info",etc,stuff,43
notheruser27,4344,"hiya",thing,more thing,423... (4 Replies)
Discussion started by: esoffron
4 Replies
7. UNIX for Dummies Questions & Answers
Gurus,
I am relatively new to Unix scripting and am struck with a problem in my script. I have positional input file which has a FLAG indicator in at position 11 in every record of the file.
If the Flag has value =Y, then the record from the input needs to be written to a new file.However if... (3 Replies)
Discussion started by: gsam
3 Replies
8. Shell Programming and Scripting
Hi, I have multiple large files which consist of the below format:
I am trying to write an awk or sed script to remove all occurrences of the 00 record except the first and remove all of the 80 records except the last one.
Any help would be greatly appreciated. (10 Replies)
Discussion started by: nwalsh88
10 Replies
9. Shell Programming and Scripting
Hi All,
I just need a quick fix here. I need to delete all lines containing "." in the 6th column.
Input:
1 1055498 . G T 5.46 .
1 1902377 . C T 7.80 .
1 1031540 . A G 34.01 PASS
1 ... (2 Replies)
Discussion started by: Hkins552
2 Replies
10. UNIX for Dummies Questions & Answers
Hello,
I have a file with tab delimited columns like:
File1
A 2 C R
F 4 D Q
C 9 A B
......
I want to grep out the lines in a second file, File2, corresponding to each line in File1
Can I do this:
while read a b c d
do
grep '$a\t$b\t$c\t$d' File2 >>... (2 Replies)
Discussion started by: Gussifinknottle
2 Replies