Check the Files existence Post: 302843192

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1. Shell Programming and Scripting

check for FILES existence

hi, I have a list of filenames and I want to verify if they all exist. I know "if filename" would do the trick but how do I go about a list of files? thanks

2. AIX

Hello I am having a requirement like if there is no file in the directory then i need a message to pop on after the execution of the script. My script basically does for File in `ls -t $DIRECTORY | tail -1`; if there is no file the DIRECTORY then the script is simply exiting with out...

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Check for File Existence

I have requirement where i need to search for files which start with SALESORDER and PURCHASEORDER. i need to process the files with SALESORDER first and then PURCHASEORDER. If SALESORDER files are not there i dont want to process PURCHASEORDER and i want to come out of script. I have written a code...

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How to check for file existence?

i want to check if the file is in the directory or not, and also it should be handle error conditions, like missing files and report the error and exit. i did something like this: file ="hello" if !test -e "${file}" then echo "No such files exist!" exit 1 else do something....... fi ...

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Check existence of a number of files and call other scripts

Hi, I am new to unix scripting and am jus getting to learn about it.. I need to know on how to check for the existence of a number of files in a path..i.e the files are ftp'ed from several other servers, should check if all the files have arrived, if not wait till they arrive..can i use a flag...

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To check for existence of a file

I need to check for the existence of a file *.log in a specific directory using a perl script. Presently am not in that particular directory. So i am using chdir ("/path/to/my/file) And then i am using the -e in an if statement to check if it exists. if (-e $File) {......} $File contains the...

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check existence of files in a folder

Hi I am having a problem to verify existence of files. I need to know whether or not files in a folder that begins with a name. For example all files that start with The_File_ *. I was doing it this way, but gives me error. if text -f /work/The_File_* then ... else .. fi

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Check for the existence and add them from 2 different files

Hi, I have two files file1: ALEX DANY GARY TOM MARY HARRIS file2: ALEX 3 ALEX 5 ALEX 0 ALEX 1 ALEX 0 DANY 2

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File existence check

hi i wanted to check if the file exist or not(multiple files) DIRE=/home/V478 if ; then echo "file present" else echo "file not present" fi But i am getting the error as : [: unexpected operator/operand

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Script to check the files existence inside a directory.

Hello Folks, On Below Script, I want to apply condition. Condition that it check the directory for files if not found keep checking. Once directory have files and founded do the calculation and finish the code. Script to check the files existence inside a directory, If not then keep...

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

check for FILES existence

Discussion started by: mpang_

2. AIX

check for file existence

Discussion started by: dsdev_123