Curl command file utility supports for downloading and uploading files. Curl is useful for many works with system administration, web development for calling web services etc. In this tutorial we are providing 5 curl frequently used commands to download files from remote servers.
1. cURL Command to Download and Save File
To simply download a file using curl use following syntax. -O is used for saving file on local system with same name on remote system.
# curl -O http://example.com/download/myfile.zip
2. cURL Download and Save with Other Name
If you want to save file with different name on local system, Use -o with new file name.
# curl -o localname.zip http://example.com/download/myfile.zip
3. cURL to Download Multiple Files
Curl also provides option to download multiple files simultaneously. To download multiple file use following syntax. All files will be saves with original file names.
# curl -O http://example.com/myfile.zip -O http://example.com/myfile2.zip
4. Passing Login Credential with cURL Download
In case files are behind authenticated http or ftp server. You can pass login credentials using -u command line parameter like below examples.
# curl -u user:password -O http://example.com/myfile.zip # curl -u ftpuser:ftppassword -O ftp://ftp.example.com/myfile.zip
5. cURL Download File via Proxy Server
If server file is only available through proxy server, or you want to use proxy for downloading files, Use -x followed by proxy address and port to download file via proxy server.
$ curl -x my.proxy.com:3128 -O http://example.net/myfile.zip
Hi ,
/usr/bin/curl”,”-k”,”-u”,userName+”:”+password,”\””+hostIP+”\””,”-o” ,csvDownloadPath+”ggggg.csv”
I am using this command , where i am doing wrong, we are not getting any error in logs, running this command in java ,on linux server.
try{
ProcessBuilder pb = new ProcessBuilder(“/usr/bin/curl”,”-k”,”-u”,userName+”:”+password,”\””+hostIP+”\””,”-o” ,csvDownloadPath+”ggggg.csv”);
Process p = pb.start();
InputStream is = p.getInputStream();
System.out.println(“command running “);
}
catch(Exception e){
e.printStackTrace();
System.out.println(“command running through “);
Actually running this…
plz guide me , Thanks In advance