How to download a file from bash command






















The kB wget binary took about 5. In comparison, 's cat-solution finishes in less than 0. Not very surprising, really. This is obviously silly, since without using external utilities, there's not much we can do with the downloaded file, not even make it executable. So you can also use SSH to upload to it. Which is functionally equivalent to downloading of software packages etc. As shown in this answer , you would execute the following on your local machine to place a file on your remote headless server:.

The disadvantage of the above solution compared to downloading is lower transfer speed, since the connection with your local machine usually has much less bandwidth than the connection between your headless server and other servers. To solve that, you can of course execute the above command on another server with decent bandwidth. To make that more comfortable avoiding a manual login on the third machine , here is a command to execute on your local machine. See the explanations below for the reason.

The command will ssh to your third machine intermediate-host , start downloading a file to there via wget , and start uploading it to target-host via SSH. Downloading and uploading use the bandwidth of your intermediate-host and happen at the same time due to Bash pipe equivalents , so progress will be fast. For the -T -e none SSH options when using it to transfer files, see these detailed explanations.

This command is meant for cases where you can't use SSH's public key authentication mechanism — it still happens with some shared hosting providers, notably Host Europe. To still automate the process, we rely on sshpass to be able to supply the password in the command.

It requires sshpass to be installed on your intermediate host sudo apt-get install sshpass under Ubuntu. We try to use sshpass in a secure way, but it will still not be as secure as the SSH pubkey mechanism says man sshpass. In particular, we supply the SSH password not as a command line argument but via a file, which is replaced by bash process substitution to make sure it never exists on disk. The printf is a bash built-in, making sure this part of the code does not pop up as a separate command in ps output as that would expose the password [ source ].

And that without using a temp file [ source ]. But no guarantees, maybe I overlooked something. Again to make the sshpass usage safe, we need to prevent the command from being recorded to the bash history on your local machine. For that, the whole command is prepended with one space character, which has this effect. Normally, SSH would then wait for user input to confirm the connection attempt.

We make it proceed anyway. So we have to rewrite the typical wget -O - … ssh … command into a form without a bash pipe, as explained here. Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. Ask Question. Asked 8 years, 4 months ago. Instead, it's a command line prompt where you will only use to write and run commands.

Install the Downloaded Git Bash Client. Testing Git bash Windows installation. Git bash Windows Configurations. Some useful Windows Git bash commands. Git on Visual Studio Code. Git on Visual Studio Summary: Git bash installations and configurations on Windows. Software Prerequisites Mandatory: Windows administrative access. Optional: - Visual Studio Code: Only in case you use VS code in different app developments, you will need to test and configure git integration with it.

Net developer and would like to use source control with Git on your Visual Studio. Click on the image above to download the client version 2. Once you click the button, you will be redirected to another page with some download options as shown below.

Click on " Click here to download manually ". Install the Downloaded Git bash Client By following the previous download steps, you should have Git setup files on your Windows machine ready for installation. You can start the installation by following these steps: Click the setup file you downloaded in the earlier steps and on the "GNU General Public License" window, click Next.

On "Select Destination Location" window you can change the installation path, otherwise, just click Next. On "Select Components" window, You can select the components that match the screenshot below. I prefer to place an icon on the desktop but that's up to you. Once you complete configuring your preferences, click Next. On the "Select Start Menu Folder" window, it's optional to rename the start menu folder or even check "Don't create a Start Menu folder" at the bottom. Then click Next.

I, personally, prefer to leave the default selection and just click Next. On the - Adjusting the name of the initial branch in new repositories - step, leave the default selection unless you want to give a default name to your initial branch rather than "master", then click Next. On the "Configuring the line ending conversions" window: Choose "Checkout Windows-style, commit Unix-style line endings" in case you will be using Windows platform, but your team will be bouncing from working on Windows to Unix machines and vice versa.

This option supports cross-platform. Choose "Checkout as-is, commit Unix-style line endings" in case you and your team will be using different Windows and Unix platforms. This option also supports cross-platform. Choose "Checkout as-is, commit as-is" in case you and your team will be using Windows only and cross-platform will not be supported. I prefer leaving the default selection. But, once you decide for yourself, click Next. On the - Choose the default behavior of git pull - leave the default selection, then click Next.

Now you should see the - Choose your credential helper - window. Leave the default selection then, click Next. On the - Configuring extra options - window, leave the default selection to match the screenshot below then, click Next. Start by creating a regular text file with a list of downloads, one full URL per line. Use wget to download all the files using the following command:. The trouble with downloading files from the internet is that sometimes the file or URL is unavailable.

The timeout for the connection can take a while, and if you are trying to download lots of files, it is counterproductive to wait for the default timeout. For most distributions, wget installs by default, but if you can't find it, install it through your package manager. Specify your own timeout the amount of time the system waits for a file to begin, in seconds using the following syntax:.

The above command stops the download of files wgen megabytes has been reached. You can also specify the quota in bytes use b instead of m or kilobytes use k instead of m.

You may not have a download limit but you might have a slow internet connection. To download files without devouring all the available bandwidth on your connection, specify a limit that sets a maximum download rate. The above command limits the download rate to 20 kilobytes per second.

Specify the amount in bytes, kilobytes or megabytes. Use wget -c to continue a download where you had left off—a tool useful, for example, with dropped connections. Actively scan device characteristics for identification. Use precise geolocation data. Select personalised content. Create a personalised content profile. Measure ad performance. Select basic ads.



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