03-04-2015
Thanks a lot, really its best solution. I took long time to write c program, But your solution is very compacted really thanks a ton.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Dear Guyz:)
I have 2 different input files like this. I would like to pick the values or letters from the inputfile2 based on inputfile1 keys (A,F,N,X,Z).
I have done similar task by using awk but in that case the inputfiles are similar like in inputfile2 (all keys in 1st column and values in... (16 Replies)
Discussion started by: repinementer
16 Replies
2. Shell Programming and Scripting
Hello
I have file that consist of 2 columns of millions of entries
timestamp and throughput
I want to find the average (throughput ) for each equal timestamp before change it to proper format
e.g : i want to average 2 coloumnd fot all 1308154800 values in column 1
and then
print... (4 Replies)
Discussion started by: aadel
4 Replies
3. UNIX for Dummies Questions & Answers
Hello,
I have a tab-delimited table that may contain 11,12 or 13 columns. Depending on the number of columns, I want to cut and get a sub table as shown below. However, the awk commands in the code seem to be an issue. What should I be doing differently?
#cut columns 1-2,4-5,11 when 12 &... (3 Replies)
Discussion started by: Gussifinknottle
3 Replies
4. Shell Programming and Scripting
Hi I have a difficulty in writing shell script for performing the tasks.
A B C D
12 230 16 259
18 260 23 283
21 291 36 298
41 309 49 420
52 425 57 450
61 456 70 473
72 475 79 486
If the A(row no.2) < C(row no.1) then delete value A(row no.1) and so on...
For... (8 Replies)
Discussion started by: Sarwagya Jha
8 Replies
5. Shell Programming and Scripting
Hello,
I have a data such as this:
ENSGALG00000000189 329 G A 4 2 0
ENSGALG00000000189 518 T C 5 1 0
ENSGALG00000000189 1104 G A 5 1 0
ENSGALG00000000187 3687 G T 5 1 0
ENSGALG00000000187 4533 A T 4 2 0
ENSGALG00000000233 5811 T C 4 2 0
ENSGALG00000000233 5998 C A 5 1 0
I want to... (3 Replies)
Discussion started by: Homa
3 Replies
6. Shell Programming and Scripting
Hi,
I have a table to be imported for R as matrix or data.frame but I first need to edit it because I've got several lines with the same identifier (1st column), so I want to sum the each column (2nd -nth) of each identifier (1st column)
The input is for example, after sorted:
K00001 1 1 4 3... (8 Replies)
Discussion started by: sargotrons
8 Replies
7. UNIX for Dummies Questions & Answers
Dear all ...
I have a file which I want to change the structure based on the values in some columns and I would be grateful if you can help...
one of my files looks like ... they all have ten rows
1,0,0
10,0,0
2,0,0
3,0,0
4,1,1
4,1,1
4,1,1
5,0,0
6,0,0
7,0,0
8,0.5,2
9,0.33,3
9,0.33,3... (1 Reply)
Discussion started by: A-V
1 Replies
8. Shell Programming and Scripting
Hi,
Please help to fetch the values for a key from below data format in linux.
Sample Input Data Format
11055005|PurchaseCondition|GiftQuantity|1
11055005|PurchaseCondition|MinimumPurchase|400
11055005|GiftCatalogEntryIdentifier|Id|207328014
11429510|PurchaseCondition|GiftQuantity|1... (2 Replies)
Discussion started by: mohanalakshmi
2 Replies
9. Shell Programming and Scripting
I have a file (myfile.txt) with contents like this:
1.txt apple is
3.txt apple is
5.txt apple is
2.txt apple is a
7.txt apple is a
8.txt apple is a fruit
4.txt orange not a fruit
6.txt zero isThe above file is already sorted using this command:
sort -k2 myfile.txtMy objective is to get... (3 Replies)
Discussion started by: shoaibjameel123
3 Replies
10. UNIX for Beginners Questions & Answers
Hi there,
I am trying to filter a big file with several columns using values on a column with values like (AC=5;AN=10;SF=341,377,517,643,662;VRT=1). I wont to filter the data based on SF= values that are (bigger than 400)
... (25 Replies)
Discussion started by: daashti
25 Replies
compact(1) General Commands Manual compact(1)
Name
compact, uncompact, ccat - compress and uncompress files, and cat them
Syntax
compact [name...]
uncompact [name...]
ccat [file...]
Description
The command compresses the named files using an adaptive Huffman code. If no file names are given, the standard input is compacted to the
standard output. The command operates as an on-line algorithm. Each time a byte is read, it is encoded immediately according to the cur-
rent prefix code. This code is an optimal Huffman code for the set of frequencies seen so far. It is unnecessary to prepend a decoding
tree to the compressed file since the encoder and the decoder start in the same state and stay synchronized. Furthermore, and can operate
as filters. In particular,
... | compact | uncompact | ...
operates as a (very slow) no-op.
When an argument file is given, it is compacted and the resulting file is placed in file.C; file is unlinked. The first two bytes of the
compacted file code the fact that the file is compacted. This code is used to prohibit recompaction.
The amount of compression to be expected depends on the type of file being compressed. Typical values of compression are: Text (38%), Pas-
cal Source (43%), C Source (36%) and Binary (19%). These values are the percentages of file bytes reduced.
The command restores the original file from a file compressed by If no file names are given, the standard input is uncompacted to the stan-
dard output.
The command cats the original file from a file compressed by without uncompressing the file.
The command is present only for compatibility. In general, the command runs faster and gives better compression.
Restrictions
The last segment of the file name must contain fewer than thirteen characters to allow space for the appended '.C'.
Files
compacted file created by compact, removed by uncompact
See Also
compress(1)
compact(1)