- #Windows grep to extract text from a file how to#
- #Windows grep to extract text from a file windows#
Here we have copied the output of docker images command to file.txt and then displaying the columns from it.
In that case, we need to use the file name in our command. In the previous examples, we were showing columns from a command output but what if we have to show columns from a file instead from a command output.
#Windows grep to extract text from a file how to#
C:\> for /f "tokens=1-3 delims= " %i in ('docker images') DO %i %j %kĮxample 5: How to Display the 1st Column of a File For example, here we are displaying column from 1st to 3rd using for /f "tokens=1-3 delims= " %i in ('docker images') DO %i %j %k as shown below. To do that you can assign the column range to tokens. Sometimes you might want to see a range of columns from an output. C:\> for /f "tokens=1,3 delims= " %i in ('docker images') DO %i %jĮxample 4: How to Display a range of Columns from an Output To display the 1st and 3rd column of docker images command output, you need to use for /f "tokens=1,3 delims= " %i in ('docker images') DO %i %j as shown below. Then to display the 3rd column from above output, you need to use for /f "tokens=3 delims= " %i in ('docker images') DO %i as shown below.Īdvertisements C:\> for /f "tokens=3 delims= " %i in ('docker images') DO %iĮxample 3: How to Display the 1st and 3rd Column of an Output Ubuntu latest ba6acccedd29 4 weeks ago 72.8MB C:\> docker imagesĭebian latest 827e5611389a 5 hours ago 124MBīitnami/jsonnet latest 9c99af3c6e63 7 hours ago 87.6MB Similarly, if you have some other command output like docker images output. C:\> for /f "tokens=1 delims= " %i in ('docker ps -a') DO %iĮxample 2: How to Display the 3rd Column of an Output Then to display the 1st column from above output, you need to use for /f "tokens=1 delims= " %i in ('docker ps -a') DO %i as shown below. C:\> docker ps -aĬONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMESĬ2adf7864497 debian:latest "/bin/bash" 10 seconds ago Exited (0) 5 seconds ago competent_teslaī47e78d48042 bitnami/jsonnet "jsonnet /bin/bash" 20 seconds ago Exited (1) 19 seconds ago quirky_grothendieckĢ01b2ce8cb1d bitnami/jsonnet:latest "jsonnet /bin/bash" 33 seconds ago Exited (1) 33 seconds ago relaxed_golickĪ51fdaa8be5d debian:latest "/bin/bash" 50 seconds ago Exited (0) 47 seconds ago infallible_lewinĨec360b2132c ubuntu:latest "bash" About a minute ago Exited (0) About a minute ago sleepy_chatterjeeĬ4fbb13caa7f ubuntu:latest "/bin/bash" About a minute ago Exited (0) About a minute ago peaceful_thompson If you have any command with output in the form of rows and columns like we have for docker ps -a command here.
#Windows grep to extract text from a file windows#
How to Display Nth Column of a File or an Output using Windows Command LineĪlso Read: 31 Most Useful netsh command examples in Windows Example 1: How to Display the 1st Column of an Output Here I will show you how to perform column operations in Windows using just for loop so that you can use it in your System irrespective of the Windows version you are using. Well, there are no such tools like awk and sed in Windows like we have in Linux or Unix, so to extract the column from a file or a command output we can either use inbuilt PowerShell script or Windows commands. All these things are quite easily possible if you are using Linux or Unix based Systems what about when you are using Windows based systems. May be even delete a column from a file or from an output.
Very often, we do face a situations where we just need to display few columns from a file or from a command output in Windows. In this article, we will see how to display nth column of a File or an Output using Windows Command Line with the help of some real world examples.
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