Awk command with two source files Post: 302693191

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

awk command to split in to 2 files

Hi, I have a problem in grepping a file for 2 strings and writing them to 2 appropriate files. I need to use the awk command and read the file only once and write to the appropriate file. My file is very huge in size and it is taking a long time using cat command and grep command. Can anyone...

2. Shell Programming and Scripting

Splitting input files into multiple files through AWK command

Hi, I needs to split *.txt files from single directory depends on the some mutltiple input values. i have wrote the code like below for file in *.txt do grep -i -h "value1|value2" $file > $file; done. My requirment is more input values needs to be given in grep; let us say 50...

3. Shell Programming and Scripting

Apply 'awk' to all files in a directory or individual files from a command line

Hi All, I am using the awk command to replace ',' by '\t' (tabs) in a csv file. I would like to apply this to all .csv files in a directory and create .txt files with the tabs. How would I do this in a script? I have the following script called "csvtabs": awk 'BEGIN { FS...

4. Shell Programming and Scripting

Any command to delete files from source dir after SFTP copy

Hi, I am currently using SFTP 'put' command to copy all files to remote server and then delete the copied files from source directory. Can anyone help me with a single command to copy and remove files in one go? Thanks and Regards, Chetan Vyas

5. Shell Programming and Scripting

need a shell script to extract the files from source file and check whether those files existonserve

Hi, I am new to shell scripting.Please help me on this.I am using solaris 10 OS and shell i am using is # echo $0 -sh My requirement is i have source file say makefile.I need to extract files with extensions (.c |.cxx |.h |.hxx |.sc) from the makefile.after doing so i need to check whether...

6. Shell Programming and Scripting

awk command to compare a file with set of files in a directory using 'awk'

Hi, I have a situation to compare one file, say file1.txt with a set of files in directory.The directory contains more than 100 files. To be more precise, the requirement is to compare the first field of file1.txt with the first field in all the files in the directory.The files in the...

7. UNIX for Dummies Questions & Answers

Concatenate files and delete source files. Also have to add a comment.

- Concatenate files and delete source files. Also have to add a comment. - I need to concatenate 3 files which have the same characters in the beginning and have to remove those files and add a comment and the end. Example: cat REJ_FILE_ABC.txt REJ_FILE_XYZ.txt REJ_FILE_PQR.txt >...

8. Shell Programming and Scripting

Compare two files using awk command recursively

I want to compare two files, 1) Compare Each query result. 2) Compare Only first row of the Query output 3) Compare Time (3rd column), First file time is lesser than 2nd file then print the PO_NUM else do nothing. File1: C:\script>call transaction 1OPOP C:\script>Select ID, PO_ID, TIME, DES...

9. UNIX for Dummies Questions & Answers

awk command to compare files by column

So I have this issue. I have 4 files. the first one is the master file who has all possible combinations: file 1 - a - b - c - d - e the other three have some of the letters and a number instead of - for example file 2 34 a 5 c file 3 10 b 12 ...

10. Shell Programming and Scripting

Question on awk source files

Im repeating same command to get count, filename from 4 different files, writing to one same file. awk 'END{print NR"|"FILENAME}' file.txt >> temp.txt; awk 'END{print NR"|"FILENAME}' asdf.txt >> temp.txt; awk 'END{print NR"|"FILENAME}' lkjh.txt >> temp.txt; awk 'END{print NR"|"FILENAME}'...

LEARN ABOUT DEBIAN

bup-margin

bup-margin(1)						      General Commands Manual						     bup-margin(1)

NAME

       bup-margin - figure out your deduplication safety margin

SYNOPSIS

       bup margin [options...]

DESCRIPTION

       bup margin  iterates  through  all  objects  in	your  bup repository, calculating the largest number of prefix bits shared between any two
       entries.  This number, n, identifies the longest subset of SHA-1 you could use and still encounter a collision between your object ids.

       For example, one system that was tested had a collection of 11 million objects (70 GB), and bup margin returned 45.  That  means  a  46-bit
       hash  would be sufficient to avoid all collisions among that set of objects; each object in that repository could be uniquely identified by
       its first 46 bits.

       The number of bits needed seems to increase by about 1 or 2 for every doubling of the number of objects.  Since SHA-1 hashes have 160 bits,
       that  leaves 115 bits of margin.  Of course, because SHA-1 hashes are essentially random, it's theoretically possible to use many more bits
       with far fewer objects.

       If you're paranoid about the possibility of SHA-1 collisions, you can monitor your repository by running bup margin occasionally to see	if
       you're getting dangerously close to 160 bits.

OPTIONS

       --predict
	      Guess  the offset into each index file where a particular object will appear, and report the maximum deviation of the correct answer
	      from the guess.  This is potentially useful for tuning an interpolation search algorithm.

       --ignore-midx
	      don't use .midx files, use only .idx files.  This is only really useful when used with --predict.

EXAMPLE

	      $ bup margin
	      Reading indexes: 100.00% (1612581/1612581), done.
	      40
	      40 matching prefix bits
	      1.94 bits per doubling
	      120 bits (61.86 doublings) remaining
	      4.19338e+18 times larger is possible

	      Everyone on earth could have 625878182 data sets
	      like yours, all in one repository, and we would
	      expect 1 object collision.

	      $ bup margin --predict
	      PackIdxList: using 1 index.
	      Reading indexes: 100.00% (1612581/1612581), done.
	      915 of 1612581 (0.057%)

SEE ALSO

       bup-midx(1), bup-save(1)

BUP

       Part of the bup(1) suite.

AUTHORS

       Avery Pennarun <apenwarr@gmail.com>.

Bup unknown-															     bup-margin(1)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

awk command to split in to 2 files

Discussion started by: m_subra_mani

2. Shell Programming and Scripting

Splitting input files into multiple files through AWK command

Discussion started by: arund_01

3. Shell Programming and Scripting

Apply 'awk' to all files in a directory or individual files from a command line

Discussion started by: ScKaSx

4. Shell Programming and Scripting

Any command to delete files from source dir after SFTP copy

Discussion started by: chetancrsp18