I have a pdf file.
I want to get that file's (filename, size, pages, author, subject) metadata tags and assign it to different variables into automator app. Can someone help me with this?
The bash command mdls '/path/to/file.pdf' should return all of the metadata for a pdf file. if you run this in a run shell script action, it will produce a list of all metadata that can be processed by a subsequent action.
Alternately, you can ask for specific metadata keys like so:
mdls -name kMDItemFSName -name kMDItemNumberOfPages '/path/to/file.pdf'
Assigning these to different variables is a bit tedious, but not too difficult.
Related
I use a streaming service (di.fm) that has many channels. Each channel has a playlist I stream from the CLI (using mpv). Each URL in each playlist stores the API KEY.
I want to store the API KEY outside of the individual playlists, so for example, if I change the API KEY, I don't have to change every playlist.
I'm on a Mac.
1) What is the best (safest) place to declare export DI_KEY=""? In .bashrc was my first thought, except I back it up to github. Any other better place to declare the env var that will be created each time I enter bash?
2) In the playlist file, how do I use the $DI_KEY in the URL?
[playlist]
NumberOfEntries=1
File1=http://prem4.di.fm:80/00sclubhits?$DI_KEY
Title1=DI.FM - 00s Club Hits
Length1=0
Version=2
Just referencing it directly doesn't work.
I'm sure this may be answered elsewhere, but in all my searching I couldn't find any helpful answers, particularly to questions 2.
Regarding setting env variables outside of .bashrc, you could create a separate file to define sensitive variables and source this from within your .bashrc.
For example, create a file ~.my-private-variables, add the filename to your .gitignore and add the line export DI_KEY="12345" to this file. Then add the following block in .bashrc:
if [ -f ~/.my-private-variables ]; then
. ~/.my-private-variables
fi
Regarding the playlist file, bash is not running the file, so the environment variable is not expanded.
You could dynamically generate the playlist when bash starts, something like this:
#!/bin/bash
filename=playlist-1.pls
baseurl=http://prem4.di.fm:80
cat << EOF > $filename
[playlist]
NumberOfEntries=1
File1=${baseurl}/00sclubhits?${DI_KEY}
Title1=DI.FM - 00s Club Hits
Length1=0
Version=2
EOF
This will expand the variable and write it to the file, in this case playlist-1.pls in the current working directory. You might add an absolute path to the filename variable that references your playlists directory.
To run this, you could create a script called playlist-generator and source this in .bashrc as described above. You could add as many playlists as you like here.
Oracle's sqlldr defaults to a .dat extension. That I want to override. I don't like to rename the file. When googled get to know few answers to use . like data='fileName.' which is not working. Share your ideas, please.
Error message is fileName.dat is not found.
Sqlloder has default extension for all input files data,log,control...
data= .dat
log= .log
control = .ctl
bad =.bad
PARFILE = .par
But you have to pass filename without apostrophe and dot
sqlloder pass/user#db control=control data=data
sqloader will add extension. control.ctl data.dat
Nevertheless i do not understand why you do not want to specify extension?
You can't, at least in Unix/Linux environments. In Windows you can use the trailing period trick, specifying either INFILE 'filename.' in the control file or DATA=filename. on the command line. WIndows file name handling allows that; you can for instance do DIR filename. at a command prompt and it will list the file with no extension (as will DIR filename). But you can't do that with *nix, from a shell prompt or anywhere else.
You said you don't want to copy or rename the file. Temporarily renaming it might be the simplest solution, but as you may have a reason not to do that even briefly you could instead create a hard or soft link to the file which does have an extension, and use that link as the target instead. You could wrap that in a shell script that takes the file name argument:
# set variable from correct positional parameter; if you pass in the control
# file name or other options, this might not be $1 so adjust as needed
# if the tmeproary file won't be int he same directory, need to be full path
filename=$1
# optionally check file exists, is readable, etc. but overkill for demo
# can also check temporary file does not already exist - stop or remove
# create soft link somewhere it won't impact any other processes
ln -s ${filename} /tmp/${filename##*/}.dat
# run SQL*Loader with soft link as target
sqlldr user/password#db control=file.ctl data=/tmp/${filename##*/}.dat
# clean up
rm -f /tmp/${filename##*/}.dat
You can then call that as:
./scriptfile.sh /path/to/filename
If you can create the link in the same directory then you only need to pass the file, but if it's somewhere else - which may be necessary depending on why renaming isn't an option, and desirable either way - then you need to pass the full path of the data file so the link works. (If the temporary file will be int he same filesystem you could use a hard link, and you wouldn't have to pass the full path then either, but it's still cleaner to do so).
As you haven't shown your current command line options you may have to adjust that to take into account anything else you currently specify there rather than in the control file, particularly which positional argument is actually the data file path.
I have the same issue. I get a monthly download of reference data used in medical application and the 485 downloaded files don't have file extensions (#2gb). Unless I can load without file extensions I have to copy the files with .dat and load from there.
I need to find (preferably) or build an app for a lot of images.
Each image has a distinct URL. There are many thousands, so doing it manually is a huge effort.
The list is currently in an csv file. (It is essentially a list of products, each with identifying info (name, brand, barcode, etc) and a link to a product image.
I'd like to loop through the list, and download each image file. Ideally I'd like to rename each one - something like barcode.jpg.
I've looked at a number of image scrapers, but haven't found one that works quite this way.
Very appreciative of any leads to the right tool, or ideas...
Are you on Windows or Mac/Linux? In Windows you can use a powershell script for this, on mac/linux a shell script with about 1-5 lines of code.
Here's one way to do this:
# show what's inside the file
cat urlsofproducts.csv
http://bit.ly/noexist/obj101.jpg, screwdriver, blackndecker
http://bit.ly/noexist/obj102.jpg, screwdriver, acme
# this one-liner will GENERATE one download-command per item, but will not execute them
perl -MFile::Basename -F", " -anlE "say qq(wget -q \$F[0] -O '\$F[1]--\$F[2]--). basename(\$F[0]) .q(')" urlsofproducts.csv
# Output :
wget http://bit.ly/noexist/obj101.jpg -O ' screwdriver-- blackndecker--obj101.jpg'
wget http://bit.ly/noexist/obj101.jpg -O ' screwdriver-- acme--obj101.jpg'
Now back-substitute the wget commands into the shell.
If possible please use google sheets to run a function for this kind of work, I was also puzzled on this one and now found a way to by which the images are not only downloaded but those are renamed on the real time.
Kindly reply if you want the code.
I have some older repository variables that I'm looking to turn off. Is there a good way to see where these variables are being used in reports?
Im assuming you are on a Linux platform? You could create a test report using one of those variables (or all of them if you wish), and then run a grep command on the catalog in the database to spit out all reports that have that variable in them. I have done this on columns many times.
For example, I have a column named Reporting Item Description under the - Product Details folder. When anyone uses this column in OBIEE, this is how it is referenced in the catalog:
I would perform the following grep command that would spit out all reports (including their path in the catalog) that have that certain column (or in your case, variable):
find ./ -type f -! -name "*.atr" -exec grep -l -e " - Product Details"."Reporting Item Description"" {} \;
This same scenario should hold true for repository variables (or any variables).
Unfortunately, I think your best bet might be to search the Catalog using the file system. As the catalog objects are all stored as XML you can search them for the repository variables you have.
I have a simple .csv file.
Is it possible to convert it to .xls using the command line tool ssconvert?
I would also need to specify the name of the sheet.
ln -s input.csv MySheetName
ssconvert MySheetName output.xls
The OP asked how to convert csv to xls while controlling the sheet name in the output.
The generated .xls file will use the name of the input CSV file as the sheet name, so you can symlink the .csv to anything you want (or rename the input file) to produce the desired result.
The previous answer implies that --list-exporters leads to a solution, but it merely lists exporter names with no information about their options, and no options are documented in the man page for xls-exporters. Experimentally, none of the exporters which can create .xls accept options (they fail with "The file saver does not take options" if you use -O).
Yes, it is possible.
You must specify names with extensions as input and output files.
For example:
ssconvert in.csv out.xls
Using --list-importers and --list-exporters options can take a look to available formats.