Programming :: Bash - Compare Directory To Database?
May 23, 2011
I have a (rather large) database of mp3 track information. I also have several directories of the actual mp3s. I'm trying to write a simple bash script that will check the contents of the directories against what's in the database, and upon finding a file that isn't in the database, do something.
Here's what I have so far:
Code:
The trouble I'm having (in the sample directory of "/mnt/music/B/Beatles, The/" the file "Beatles, The - Taxman.mp3" isn't in the database.) is getting it to actually trigger an error when an entry isn't in the database.
Once triggering on a non-entered file is working, any way to get it to traverse the entire /mnt/music hierarchy?
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Dec 14, 2010
I have a database of around 4000 files. I use rsync script to transfer from 2 separate updated hdd every month but I need a way to compare a .txt file or .xml file to the updated drive as I cannot use rsync delete because I can not mount all 3 drives at the same time?
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Dec 9, 2010
how to program in bash, an i have a problem, i am trying compare values in between 2 values (from another file), so far my solution is to make a nested for loop, but that causes it to compare every value. Here is a visulization of what i want
file.a 2,3,4,5
file.b
3 5
[code]...
i want the values 2, 3, 4, 5 from file.a to be compared inbetween values 3 5, 6 9,1 2, 4 7 from file.b (var1 is the value im comparing, var2 is the less value, var 3 is the greater value)
for i in $var1
do
for k in $var2
do
[code]....
my problem with the above code is it compares EVERYINNG, not the values inbetween what i want (which is 3 5, 6 9 etc).
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Oct 20, 2010
Have a bash script which contains a line like this:
if [[ ${array[${last}]} =~ "screenpc.PRODUCTION.*" ]]
which WORKED as expected in bash 4.0.33 and now fails in 4.1.2
Instrumented the script to print the value of the left-hand side and it is exactly what is expected.
As noted above, this has been working fine until we installed Fedora 13 (kernel 2.6.33), and now it fails.
Tried setting shell 'extglob' to On with same results.
Did something change? Are there other shell/bash options that need to be set?this has the whole installation stopped!
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Dec 26, 2010
How to compare oracle database table contains using (Perl/Shell)scripts.
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Jun 2, 2009
want to write a shell script to copy database archivelog files sequential from one directory to another directory within a server. I am hereby enclosing the sample archivelog file name. Archive log filename : log_0000118432_1.arc (Here number 0000118432 will be sequentially incremented by 1 for next filename). Here the catch is all Archivelogs must be copied to destination directory. Previously copied files should not be copied.
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Sep 30, 2010
I am writing a script to get the multiples of 2 and 3, place them in an 2 arrays, and then show the common integers. So far everything works fine till the comparision. I don't know how to compare them. Here is the code:
Code:
#!/bin/bash
let num1="2"
let num2="3"
[code]...
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Jun 30, 2011
I've got the following code and kludge. It's working okay except that there's a directory called "Archive" which I don't need to backup. I've tried various combinations of &&, -a, etc., and I'm kind of at a loss for getting this right.
Here's the code I have so far:
Code:
#!/bin/sh
# backup subdirs as individual tarballs with prepended timestamps and
# move them somewhere else.
# --exclude "/path/to/dir/*" (Doesn't seem to work)
[Code]...
How can I write that line so that I can loop through all of the subdirs, tarring them up, but excluding the "Archive" subdirectory?
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Apr 11, 2009
I am programming in bash and really stuck finding directory names. I have a script to find all the .php files on my / partition which will return the whole path. Is there a way to print directory hierarchy with all those values leaving out the forward slashes.
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Nov 6, 2010
I am trying to write a simple script to list all the files in a directory. The script I wrote was as below where the pdb_files is a directory and all the files which I want to list are in that folder.
Code:
files=`ls -F pdb_files/*THERMO*`
for inFiles in $files
do
echo $inFiles
[Code]....
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May 6, 2010
How do I compare the timestamp of two files? I tried this but it doesn't work:
file1time=`stat -c %Y fil1.txt`
file2time=`stat -c %Y file2.txt`
[code]....
I printed both the time stamps, in order and it gives me
1273143480
1254144394
./script.sh: line 13: [1273143480: command not found
So basically if comparision is not working, I guess. Or if there is any other nice way than what I am doing, please let me know.
Edit: There was no space in between if, so changing it to this works:
if [ $file1time -gt $file2time ]
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Dec 20, 2010
I would like to compare them, in terms of amplitude, length, tempo, ... Which program could basically analyse them giving an sufficient output data
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Mar 7, 2010
I want to compare 2 name files, for instance. I got the package foo1.tgz and the foo2.tgz. and I want a script in bash that detects foo2 is newer than foo1 and delete foo1. Can it be done for managing collection of slackware packages.
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Jul 22, 2011
I have about 50 files that the script will operate on, they are all located in the same directory.I need a bash script that will operate on all files in a directory. The script needs to add two lines to the beginning of each file based on the file name, and one line to the end of the file.A file named myfile.h should add these two lines to beginning of the file:
Code:
#ifndef MYFILE_H
#define MYFILE_H
[code]....
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Jan 31, 2009
i was wondering if there's a bash script to check the amount of files in a directory with an IF statement..
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Jul 22, 2010
I have a Directory of files over time the directory has become a pain to manage... Its now a few 100GBs each file has a partner .log file so id would want some logic in keeping these together..So I want a script to move the files into sub-directories with a limit or 4GB and then i'll burn each of the directories to DVD.
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Dec 25, 2010
In my tmp directory some logs are creating continue (with name logs.txt1, logs.txt2 up to 245). Some times these logs are creating continue within 1 or 3 second gap, now I want to write a bash script that continue monitor the tmp directory and if any time logs create simultaneously within 1 or 3 section gap it will alert me..( generally logs are create with the gap of 5 or 10 minutes duration or some time after one hours )
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Mar 12, 2010
I have a directory and sub-directories (4 or 5 depths). There are several type with extension in them (*.mp3, *.wma, *.jpg, etc). I would like to copy the whole directory to another location recursively but only *.mp3 files.
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Mar 20, 2009
I want to read an ftp site [URL]...and download the sub-directory structure and ONLY the tagfiles to the local directory.
FROM THIS:
Code:
slackware
+--a
| |aaa_base-12.2.0-noarch-1.tgz
| |aaa_base-12.2.0-noarch-1.tgz.asc
[code]....
I tried wget + grep but that didn't work too well.
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Feb 24, 2011
I'm creating a bash script to check how much free space is left in /var directory then, if it hits a certain threshold, delete certain files with numbers for extensions (e.g. fileA.1, fileA.2 fileA.3, and fileA.4, fileB.1, fileB.2 fileB.3, and fileB.4 ). Here's a snippet from my script:
[Code]...
If I use a * as a wildcard for the number extension, the script fails. Maybe regex would work here, but I'm not particularly accomplished at it. Or some other construct.
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Dec 10, 2010
I have been searching for 90 minutes for something that I "think" should be fairly easy. I'm pretty new to Bash Scripting so I could be completely wrong. Then again it may be a weird request to even need something like this. But here it is.I have a script written to convert data from one of our software version to another. The only thing I need to add to it is a "check to make sure the user running the script is in the /tmp directory".
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Apr 13, 2011
diff has the ability to trasverse directory structures. cmp has the ability to manage binary files.
I'm looking for something which allows me to compare a directory's contents, including files and subdirectories, and so a binary comparison.
Any suggestions, scripts, etc. which may be of help?
Some of my directories are huge, with huge (image) files in them.
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Jul 20, 2011
We copied the directories/files from one filesys1 to filesys2 and since that initial copy have further added more directories/files to filesys2 from another source. How can we compare filesys1 to filesys2 to make sure all files/directories were copied successfully to filesys2? I would like a way to check filesys1 against filesys2 and only show/output when something is missing from filesys2 that exists in filesys1 and not report the additional/extra directroies/files that have been copied to filesys2.
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Sep 28, 2010
I have very little linux experience. And need some help with a bash script. I need to a script I can set cron to run to sort files out of a holding folder into final folders. It doesn't necessarily have to be bash, but I think it would be sufficient for this. File names are formatted as such when created: Dest-Date-Time-CID-Destination# I want the files to be moved from a all in one holding folder to a folder structure like this.
.../storage/year/month/day/Destination#/VarX(type)/hour/CID/'File'
I would need an if/else if/else statement to say if Dest = A set VarX = B If for example the file name was
infinity-20100927-17:00-1112223333-4445556666.wav
I would like the above file to end up moved from
.../holding
to
.../storage/2010/09/27/4445556666/Inbound/17/1112223333/infinity-20100927-17:00-1112223333-4445556666.wav
So the script will need to make directories based on information in the file name which is delimited by single dashes. Then move files from the holding folder to the newly created "sorted" folders.
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Sep 7, 2010
I'm writing a script to execute bash commands in the PHP CLI. I would like to suppress errors from bash and write my own error message if an error occurs. So far I have this (assuming log.txt doesn't exist!):
Code:
tac log.txt 2>/dev/null
Which works as expected, tac kicks up an error but the error is suppressed, but when I use this:
Code:
tac < log.txt 2>/dev/null
I get:
Code:
bash: log.txt: No such file or directory
The tac error is suppressed but bash still gives me a dirty error.
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Apr 5, 2011
How can I use diff to compare the files of similar directories on to diferent linux boxes.
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Jul 22, 2010
What is the best and simplest way to compare two directory structures without actually comparing the data in files. This works fine:
diff -qr dir1 dir2
But it's really slow because it's comparing files too. Is there a switch for diff or another simple cli tool to do this?
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Mar 1, 2011
Actually build a script which can monitor the "DateTimeHourMinute" in a data file.
I wanted to compare the "DateTimeHourMinute" from the 2nd column against "DateTimeHourMinute" on the 3rd column which located in the same line.
Below is the data sample:
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Jan 3, 2009
I have a large number of files, all of them named /*/*.xyz I need to match them to potential files name /*/*.abc I have tried find -name *xyz |awk '// {print '$NF'}' | awk '{print $NF }' but the result has the full path I just need the filename without the extention, and without the full path.
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Aug 21, 2010
I would like to compare to mysql rows as follows:
Select count(*) from stocks2.historical where close*1.05 < (select open from stocks2.historical where date = date_add(date,interval 1 day))
and year(date)=2010;
The problem is with the "date" in bold... i want that date to be the date of the previous row. is there a way to do that purely with mysql? (naturally, i can write a script to go through and compare each date; what i'm asking for is a mysql solution.)
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