Programming :: Read File Names In A Dir And Its Sub Dir In Perl?
Apr 22, 2010
I am writing a script that involves reading the content of a file present in a directory and/or its sub directory. I know readdir returns all the files & DIR names in a directory but how to check weather readdir is returning a file or a directory
Using a list of names (over 4000 of them) painstakingly gleaned from the source file years ago for a database file, I want to match the names against the source file so that they can be updated with the tags <forename></forename> in the original source file.
I placed the list of names in @forenames (only posted a few of them here).
Perl script is:
I am able to get the name bracketed by the tags to appear on the console screen but don't know how to apply the output to the source file. Perhaps I need to do a match on the words then some kind of edit to surround the matching words with the xml tags? I'm a rank novice doing this as a labour of love for a friend.
I am trying to make a perl script which reads data from a file and parse it. The data in the file has the following syntax
Code: Device Physical Name : Not Visible Device Symmetrix Name : 1234 Device Serial ID : N/A Attached BCV Device : N/A Device Capacity
[Code]...
Each unique record starts with "Device Physical Name". So, I have a set of records within "Device Physical Name". I want to read this set of records starting from "Device Physical Name" and ends up till next "Device Physical Name". Offcourse FS is ":", and I just want to print/or later put info in a csv file.
it's been a while since I logged on here! I've been trying my hand at a little perl and have hit a brick wall.I'm using the Imagemagick module to manipulate some images. I can get the following to work without issue:
I have script that I'm working on that updates a username in all the files that are called blah.inc for my framework. since i host a bunch of these web apps i need to do it to all of them. so I need to figure out how to update these files automagically with out me watching it to call vim every time. heres what I have so far
Code:
This finds the files but now i need to figure out how to do s/bob/fred/g on those files.
I have a laptop that I am in through SSH. The laptop does not have an Xwindow system so I am using the program fbi to open an image on my laptop screen from my SSH connection:
fbi -T 8 picture.jpg #this opens the image on the laptops tty8 terminal
I've found that making a for loop does not work with files that contain a space in the name. Something to due with a bug that they call a "feature" that stops the first variable at the first whitespace.
Using a "while" loop is not exactly what i require either seeing as I want to be able to view each image in the directory on screen and tag it accordingly, before it jumps off to the next image, and I'm not sure how to add a pause to a while loop.
How do I make a Bash script and loop Variables handle files like "files that contain spaces.jpg"
I often get files with many spaces as part of their names. I would like to automatically replace these spaces with underscores, but otherwise not change the file name. Is there a way to do this task with just the bash shell?
Im writing my first bash script. Its function is to move files to the trash can and write a log file in the same format that the system does to allow for file restoration. The problem is that in bash, everything works fine, but in the OpenBox window session, the files are named after the source directory, not the original name. Heres the script:
Code: #!/bin/bash # trash - Script to move file or folder to the trash can and create a log file ##### Functions ##### err_output () # Writes error message { echo "$0: cannot stat `$1': No such file or directory" echo "USAGE: $0 SOURCE DEST" exit 1 } >&2
if [ -e "${DEST}/${FILE}" ]; then max=0 DIR="$(pwd)" cd "$DEST" shopt -s nullglob for backup in "${FILE}."; do nr=${backup#${FILE}.} if [[ "$nr" =~ ^[0-9]+$ ]]; then if (( nr>max )); then max="$nr" fi fi done cd "$DIR" max=$(( max + 1 )) write_log_numbered mv -- "$SOURCE" "${DEST}/${FILE}.$max" else write_log_unique mv -- "$SOURCE" "$DEST/${FILE}" fi
So I run the script with the test file "Junk". In bash, it moves over and its named correctly. Code: ~/.local/share/Trash/files$ ls file file.1 Files Files.1 Junk The log file is also named correctly
Code: ~/.local/share/Trash/info$ ls file.1.trashinfo Files.1.trashinfo Files.trashinfo file.trashinfo Junk.trashinfo
But, when I go to view the trash can in the file manager in Openbox, the file is called "Testing" which is the name of the source directory. However, if I go to the trashcan via its full path (going to .local/, then share/) all the files are named correctly. Whats going on here? Is there some way to get the trash can to read the correct file name?
I just learn perl script.May i know how to simplify the code below especially in the red color part? i saw some examples in internet, they use "next" command.
I have a log file (test.log) starting & ending within dash (--) as below. I am looking to write a parser for test.log. This test.log file currently has single value for one Job ID but I wish to parse for repeated N values of different Job ID - Job, User, Queue, Dispatched Date, Dispatched Time, Completed Date, Completed Time, Hosts/Processor, CPU_T and TURNAROUND. I can either output this 10 values in another .log file or dump into cgi.
The selected parameters from test.log for parsing with above 10 attributes are -
Some more HTML code... I would like to cut the above text so i get this: Sometext on multiple lines like this.Sometext on multiple lines like this.Sometext on multiple lines like this. Sometext on multiple lines like this.Sometext on multiple lines like this.
There are other HTML files with similar cuts I need to do, but once I have the method for doing one, I am sure I can do the others.
I think the two logical strings to cut between would be:
I am not sure if these strings are always the start and end of the line respectively, is this makes a lot of difference! Then the HTML tags would need to be stripped to get the text on its own.
I know the commands for removing tags, but searching for a string like class="IOSSectionTitle", and cutting everything before it etc is something I am finding challenging.
Just thought I would add that the HTML does not nec. appear on logical new lines throughout the file and there may be unexpected new lines, but as far as i know the class="IOSSectionTitle" and <img always appears as a string without any new lines between those characters.
I have a few problem. I have txt file like this:Quote:00 21 55 84 9a ff 00 1f 9e 1a 5b 00 08 00 45 00 00 4b 00 00 40 00 3f 11 9a 0e a1 8b fa 02 04 02Then, based on my txt file, I would like to generate text like this:Quote:00215584 2155849a 55849aff 849aff00 9aff001f ff001f9e 001f9e1a 1f9e1a5b 9e1a5b00 1a5b0008 5b000800 00080045 08004500 00450000 00004b00 004b0000 4b000040 00004000 0040003f 40003f11 003f119a 3f119a0e 119a0ea1 9a0ea18b 0ea18bfa a18bfa02ased in my reading, I found about ngram solution in perlbut I not really understand to edit from source code given. I m begineer user in programming language. I hope to get the solution. [URL]
I am using File::Find to go through a very large tree. I am looking for all xml files and open only those that contain a tag <Updated>. I then want to capture the contents of two tags <Old> and <New>.
My problem is, after I open the file and do the first grep for <Updated> (which does work), I am unable to grep again unless I close the file and open it.
I did something like this:
Quote:
find(&check, $dir); sub check { if ($_ =~ /.xml/){ open(FILE,"$_"); if (grep{/Updated/} <FILE>){ # <-- works
I am trying to read certain lines within a file and give the output of the certain lines that dont equal my value, I think showing you would be easier. There is multiples of these inside one file...
Code:
LV Name /dev/vg00/lvol1 LV Status available/syncd LV Size (Mbytes) 300lable/syncd
[code]....
I want to read everything in the file, if the status is not available then it should display the name (directly above status). If they are all availbale then do nothing. I think I know how to do it which includes putting the info in string form and placing in hash but it is proving to be out of my skill range.
Order of these lines are random... So I cannot delete line #19, for example... And you can see that top four lines I want to delete are pairs. So there might be some clever way to detect the lines, if a line has both "1.9" and "1.11", then delete the line... I am new to perl language. The following is the code I have now... I think I just need to write some code inside the while loop checking if I want to delete the line $dotline before I write to a NEW file.
There is the Archive::Zip I think I can use with Perl 5.10 but I don't know how. I don't want to read or write any files, just zip something in memory, with best compression, like
$text = "this is a test"; $zippedtext = &Zip($text); sub Zip {