Ubuntu :: Set Of Files In A Directory Using The Line?
Jan 9, 2011
I have a (hopefully) quick question which is regarding some scripting I used to do under a DOS/Windows env. I used to use the "for" command to iterate through a set of files in a directory using the line:
Code:
for each %1 in ([dir]) do [command]
But that doesn't work under bash. I presume the syntax is slightly different but doing
Code:
for --help
or
Code:
man for
Doesn't give me much any information at to syntax or usage. I'm sure there is something in bash or the standard shell, I just can't seem to find it.
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Feb 21, 2011
Is there an easy way to put all of the current directory's files on the command line, without tab-completing each individual one?
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Jan 23, 2010
A Javascript has crept into all my hmtl, php files in my shared hosting account. I have SSH access.How can I use sed to remove that line from all files in a directory recursively ?sed doesnt change the original file.And I need to specify *.php and *.html
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Sep 21, 2010
I need a PHP script to delete a line with certain pattern from all filesin a directory. The Directory contain files with extensions .js,.html and.php. Do any body give a working code snippet to Read all files in a directory with above extension and delete that line from the files.
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Jun 10, 2010
I need to copy all subdirectories and files from one directory to another ever 5 minutes or so, with the old data automatically being overwritten with the new data. I'd also like this to run at startup. Is there any way this can be done? If so, what program would I need to schedule the automation and what is the command line I would need.
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May 30, 2011
I am trying to write a program in C which compares two files and prints the line that is equal.
Here file1.txt has
and file2.txt has
Note: file2.txt consist of only a single string where as file2.txt has multiple lines. Actually im comparing two files with md5sum values.
Here is the code but it compares only first line of files..but it should compare the whole file1..and sorry iam a beginner in C can any1 sujest some modification to this code so that..it can compare file2 with entire file1
Quote:
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Jun 30, 2011
How would i go about copying files to a directory, yet skip the files that already exist in the directory, and also remove the files that are in the directory. For example:
Code:
$ls /dir1
img001.jpg
img002.jpg
[code]....
Now i would like to copy from dir1 to dir2, but the contents of dir2 would be:
Code:
$ls /dir2
img003.jpg
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Nov 14, 2010
There are millions of files in many directories. Wherenver i try rm * or find or use xargs, they say 'argument list too long' and exit. How can i deleted files in a directory with so many files without deleting the directory itself.
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Sep 12, 2010
I currently have 3 files with floating point data that I wish to have in a single file with the format:
Code:
F1 F1 F3 Output
a1 b1 c1 a1 b1 c1
a2 b2 c2 a2 b2 c2
a3 b3 c3 a3 b3 c3
a4 b4 c4 a4 b4 c4
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Oct 18, 2010
I have two txt files containing x and y coordinates: xcoord.txt & ycoord.txt. I need to open them; read them line by line to get each coordinate; then each time I need to update Xs and Ys parameters inside another file called "dc.in" with the grabbed values.
Finally each time I need to run two exe files ( dc_2002 and st_vac) and produce corresponding output for each Xs and Ys ( dc.in is an input file for this exe files)
I have written the following code but it does not work:
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Mar 21, 2011
This solution works but is slow with large files. I am looking for a faster solution.
The 2 files contain filenames, one of them has associated data I want to append to the other file's matching filenames
file1:
file2:
I append file2 by matching the unique_filenames and appending them with the tag data and some formatting
appended file2:
Here is the SLOW code
while read inputline.
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Mar 8, 2011
I have a set of files containing data that I need to re-arrange into one single property list.
The files that I have look like this:
Code:
# cat uk
<string>10</string>
<string>11</string>
...
<string>29</string>
[Code]....
So the lines in the files match up but I haven't found a way of reading several files line by line.
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May 5, 2010
I'm extracting data from a xml file writing it to separate files then combining the results as a csv file.The problem is keeping the separate files in sync line by line.When a grep does not action I would like to put in a blank line or something to keep the lines in order.When the "<title>" is missing as in as in the first"<programme </programme>" that's where I need somethingto write to the file as dummy data to increment the line
here's the data
Code:
<programme channel="15552.dvb.guide" start="20100504200000" stop="20100504204000">
<category>Show / Game Show</category>
</programme>
<programme channel="14498.dvb.guide" start="20100504200000" stop="20100504203000">
[code]....
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Jul 6, 2010
I'm a bit new to Python programming and hoped that someone might be able to help with a problem I'm having. What I essentially want to do is to combine two text files line for line. I know how to do this in a bash script so to give you a better idea here's the code for that:
Code:
This is basically for adding on values to the end of a CSV file that uses ';' as the delimiter. So say file1 said:
And file2 said:
Then running this command would create merged_file1_and_file2 which would be:
The code I'm using at the moment is:
Code:
As I'm sure any experienced python programmer will see, this prints out the first line of the file "csvraw" and then all of the lines of "stamps" and then the remainder of "csvraw".
What I'd like to do is something like: (pseudo code, I know it's not python ;-))
Code:
Is this possible? I've tried googling and my Python Pocket Reference hasn't been much help. I've looked at pickling but that doesn't seem appropriate.
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Feb 21, 2010
Recently I mounted a larger partition into my home directory since I was running out of space, Everything went smoothly, but it caused me to wonder about something I cant figure out. While playing with the mount unmount commands when I was copying everything over... before editing my fstab.
Is there a way to access the files that existed in a directory before you mount a partition to that directory? after mount the original files are gone.unmount and they are back, Where do they go?
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Mar 24, 2010
I have two files (not sorted) and need to compare line by line (i.e. first line of file1 to be compared to all the lines of file2 and so as for the rest of file1). Output will be an array of length of file2. Any suggestion in BASH other than a grep inside two read line loops ( which is time consuming for files ~1000s of lines).
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Jul 7, 2010
I have two questions:How do I remove files from Directory A if their name appears in Directory B?How do I move foo.jpg and bar.jpg from Directory C to Directory D if and only if foo.png and bar.png appear in Directory D?I suspect there's probably a bash one-liner for this, but...I can't come up with it.
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Jan 18, 2010
How do you perform a long directory listing of all files in the /bin directory that have exactly three characters in their name?
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Aug 1, 2009
i want to copy a few files from my windows directory into the wine directory - its no big deal, just a few preference files so i dont have to set something up all over again. trouble is, i had the files copied, but i cant find the wine/ c: drive directory anywhere, anyone know where this can be found??
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Jan 29, 2010
Is there a way, on Linux, to cause all new files created in a directory to be owned by the directory's group instead of the creating user's group?
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Oct 13, 2010
I want to run a cronjob every 15 minutes that checks a directory for files. If the directory contains more than ten files I want it to send an email to me.
All I have is this...
*/15 * * * * ls -l | wc -l | [filename] | mail -s "This is just a test" [email address]
I would rather not write a bash script. Is there an easier way to do this? I was looking into some commands like find and grep.
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Jul 13, 2011
I'm quite new to linux but I have configured a simple ftp server and it's working great. I have a FTP-Shared folder with upload and download subfolders. Under upload's and download's I have identical category subfolders like mp3's, movies, software etc. in both. As the guy's upload, I would like to create a line crontab where I can move all the content under /FTP-Shared/upload/mp3/* older than 14 day's to FTP-Shared/downloads/mp3/ recursively (Like in cp command), but the timestamp must be searched on the first directory and not sub files example: /mp3/Club Dance/CD1/Hallo world.mp3This is how far I got:[root@clients ~]# /usr/bin/find /FTP_Shared/upload/Mp3s/ -depth -mindepth 1 -mtime +14 -type d -exec mv -f {} /FTP_Shared/download/Mp3s/ ;This command moves the directory and files, but it is not recursively
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May 3, 2011
When I run "ls -al somedir*" (I use the "ll" shortcut, actually), Linux not only list files that match, but also the contents of directories whose name also happens to match.Is there a way to limit "ls" so that it will only show names (files and directories) and ignore the contents of the directories?
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Jan 3, 2009
After i try to find logfiles follow date/month/year. i want copy this files to another directory with name's directory is time you find(date/month/year).
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Feb 20, 2011
Is there a method at the command line to copy files from one location to another and retain the source files group and user?I'm migrating some MySQL files from one machine to another.I want to back-up the original files in the directory presently. They have owner:group of mysql, some have owner:group root:mysql and so on. To copy them under cli or Nautilus everything changes to root for I execute sudo cp or gksudo nautilus and copy via gui.
Since it is MySQL data I could simply do a dump of the database and restore it on the other machine. But there's about 20 db's and I want to do this via a copy for it will be faster - at least that is what I think.
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Jul 20, 2011
I'm using OpenSSH 5.5p1 on Fedora 15. I'm trying to get a chrootDirectory to work. Specifically trying to figure out why I can't write files to a sub-directory of the chroot directory. I created a user test_user and created a group called sftp. I added test_user to the sftp group. I edited /etc/ssh/sshd_config as follows:
Code:
Subsystem sftp internal-sftp
Match group sftp
ChrootDirectory /home/sftp_users/%u
X11Forwarding no
[code]....
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Feb 11, 2011
If I have a directory /foo with a few files in it, how do I symlink each entry in /foo into /bar/? For instance, if /foo has the files a, b and c, I want to create three symlinks:
/bar/a -> /foo/a
/bar/b -> /foo/b
/bar/c -> /foo/c
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Aug 3, 2010
i need to burn a specific Directory (and all it`s content) into a CD by using the command line what do i need to write ?
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Oct 24, 2010
how do you get to the usr directory from command line.
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Jun 6, 2011
i have installed php5.apt-get install php5 installed fine but when i got to a php program its looks for it in
line 90: /usr/bin/php: No such file or directory
whereis:
~# whereis php5
php5: /usr/bin/php5 /etc/php5 /usr/lib/php5 /usr/share/php5
iv added a symlink to bin as u can see above but thats no good as the php is looking for it in /usr/bin/php how can i get /usr/bin/php. drag php5 folder in there and rename it?
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