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How does one write a C program in Linux to read all text files (that is, files that end with .txt) in the current directory and to merge them all into one text file and returns a file descriptor for the new file.
You can run commands on C code ( system(cmd) ).
First write a command which concatenates all the txt file in a txt :
find . -name '*.txt' | xargs cat >> out.txt
Then call this command in c code.
Then try to open out.txt.
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I always type the commands below on CMD to launch jupyterlab:
[cmd]
julia
using IJulia
jupyterlab()
I wanted to automate this process and I tried writing a .bat file test.bat and running it on CMD:
[test.bat]
echo "launching jupyterlab..."
julia
using IJulia
jupyterlab()
end
However, CMD stops reading the commands after reading the command julia at 2nd line, meaning, it doesn't run using IJulia and jupyterlab().
What is going on and what should I do?
Any information would be appreciated.
Try using julia in evaluate mode like this:
julia -e "using IJulia; jupyterlab()"
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Is something like
Input: 1 > say.bat
Output: 1
Possible?
Probably Not just wondering.
Also how would I get what was passed before the > sign?
If you know if it is possible or impossible, please try to comment so I don't have to wait forever.
If you are trying to say some text into a Batch file or any kind of file. Try these steps:
Use "echo" at the start of the script and then add your text you would like to output.
Add ">>" onto the "echo" Line and enter the file name, along with the extension of the file you would like to write to. (This will create a file if it does not exist)
For Example:
echo Hello World! >> file.txt
You will be able to use this as many times as you want.
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I have a text file that contains gmail contacts, after each address there's the name of the email address owner example : John(at)gmail(dot)com:John and some other emails like this : John(at)gmail(dot)com;John
each address is in a new line, I want to delete all names and keep just the addresses, so I don't have to do it manually each time. how can I do this in batch script. I want to delete everything after ":" or ";" in every line. Thanks
It's a simple one-liner:
(FOR /f "delims=:;" %%a IN (filename1) DO ECHO %%a)>filename2
where filename* are your filenames and > should be replaced by >> to append to filename2 rather than creating filename2 anew.
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I have a batch of PDF files in a folder and I am trying to rename them.
Example:
File1_20170501_data.pdf
File2_20170401_statistics.pdf
Sale2_20170404_Misc.pdf
I only want to keep the first six characters of each file name (the five characters left to underscore and the underscore) and replace everything behind with sample data.
The final file names should be:
File1_sample data.pdf
File2_sample data.pdf
Sale2_sample data.pdf
Anyone can advice which command line to use for this file renaming task?
Given your provided information at the time of this answer, one simple command should do what you need:
Ren "C:\path to\a folder\?????_*.pdf" "?????_sample data.pdf"
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I still don't understand what makes you more confused here. Anyway I got solution for my first question. I am able to merge 2 files and able to insert the content in first file.
Now come up with a scenario where I'm trying to remove a specific string from file1 and copy file1 to file2.
Below my code
set file1=Y:\NAS\EODReport\\"CAT Channels Audit Report_%TODAY%**.TXT\"
FINDSTR /V "Transaction Gateway Item Listing Creation Amount Seq Y:" %file1%> file2.txt
In file2, i can see the file1 namee (Y:\NAS\EODReport\\"CAT Channels Audit Report_%TODAY%**.TXT\) is getting copied all over the line.
How can i remove that filename in my file2 content ?
without knowing what particular position means, i have to leave this part for yourself. basically it's as easy as:
sed -n '1,/your particular position/p' s1 >> s3
cat s2 >> s3
i assume by merge you mean to append. it's better if you phrase your question better first.