10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi All,
I am new to UNIX . Please help me in writing code to delete all records from the file where all columns after cloumn 5 in file is either 0, #MI or NULL.
Initial 5 columns are string
e.g.
"alsod" "1FEV2" "wjwroe" " wsse" "hd3" 1 2 34 #Mi
"malasl" "wses" "trwwwe" " wsse" "hd3" 1 2 0... (4 Replies)
Discussion started by: alok2082
4 Replies
2. Shell Programming and Scripting
Hi all,
I have a big file (about 6 millions rows) and I have to delete same occurrences, stored in a small file (about 9000 rews). I have tried this:
while read line
do
grep -v $line big_file > ok_file.tmp
mv ok_file.tmp big_file
done < small_file
It works, but is very slow.
How... (2 Replies)
Discussion started by: Tibbeche
2 Replies
3. Shell Programming and Scripting
I have a Unix file with 200,000 records, and need to remove all records from the file that have the character ‘I' in position 68 (68 bytes from the left). I have searched for similar problems and it appears that it would be possible with sed, awk or perl but I do not know enough about any of these... (7 Replies)
Discussion started by: joddo
7 Replies
4. Shell Programming and Scripting
Hi
I do have a text file with 1000's of lines with 1 row and column with a specific pattern.
1102
1
1
1
1
1234
1
1
1
1
1009
1
1
1
1
1056
1 (3 Replies)
Discussion started by: Lucky Ali
3 Replies
5. Shell Programming and Scripting
I need to delete rows based on the number of lines in a different file, I have a piece of code with me working but when I merge with my C application, it doesnt work.
sed '1,'\"`wc -l < /tmp/fileyyyy`\"'d' /tmp/fileA > /tmp/filexxxx
Can anyone give me an alternate solution for the above (2 Replies)
Discussion started by: Muthuraj K
2 Replies
6. Shell Programming and Scripting
Hello to all members,
I am very new in unix stuff (shell scripting), but a want to learn a lot. I am a ex windows user but now i am absolutely Linux super user... :D
So i am tryng to made a function to do this:
I have two csv files only with numbers, the first one a have:
1
2
3
4
5... (6 Replies)
Discussion started by: Sadarrab
6 Replies
7. Shell Programming and Scripting
Help
How to delete all blank rows in log file (4 Replies)
Discussion started by: suryanarayana
4 Replies
8. Shell Programming and Scripting
I have a file content like below.
"0000000","ABLNCYI","BOTH",1049,2058,"XYZ","5711002","","Y","","","","","","","",""
"0000000","ABLNCYI","BOTH",1049,2058,"XYZ","5711002","","Y","","","","","","","",""
"0000000","ABLNCYI","BOTH",1049,2058,"XYZ","5711002","","Y","","","","","","","",""... (5 Replies)
Discussion started by: vamshikrishnab
5 Replies
9. Shell Programming and Scripting
Hi
I have a file having 1000 rows. Now I would like to remove 10 rows from it. Plz give me the script.
Eg:
input file like
4 1 4500.0 1
5 1 1.0 30
6 1 1.0 4500
7 1 4.0 730
7 2 500000.0 730
8 1 785460.0 45
8 7 94255.0 30
9 1 31800.0 30
9 4 36000.0 30
10 1 15000.0 30... (5 Replies)
Discussion started by: suresh3566
5 Replies
10. Shell Programming and Scripting
Hi everybody:
Could anybody tell me how I can delete repeated rows from a file?, this is, for exemple I have a file like this:
0.490 958.73 281.85 6.67985 0.002481
0.490 954.833 283.991 8.73019 0.002471
0.590 950.504 286.241 6.61451 0.002461
0.690 939.323 286.112 6.16451 0.00246
0.790... (8 Replies)
Discussion started by: tonet
8 Replies