How to print all columns except first column in Linux bash shell ?
Today in this article, we will look at an interesting tip to print all columns of a file except first. Lets look the command stepwise to understand how it works....
Tag: AWK
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How to look/grep for special characters in a file in linux bash shell ?
Today in this post, we will look how to search or grep special characters in a file text. To search special characters in linux, we need to escape them using...
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How to test a valid IP address in Linux Bash Shell ?
Here is a quick tip to test a valid IP address on linux bash shell. I have recently used it in one of the scripts i need to prepare. I....
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How to run any linux command inside AWK command ?
Today we will look at an interesting tip how to run a linux command inside the awk command. For this trick, we will assign the command to a variable, say...
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How to add line number in the command output or to a file in Linux ?
Suppose you want to add line numbers to the output of some command or when reading any file. In this post we will look at a quick tip how to...
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How to replace some text using sed awk, and bash ?
Today we will see how to replace some text from a string using sed, awk, tr and in bash shell. Suppose you want to remove “~” from a string, it...
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How to find number of proesses running on Linux system currently ?
Suppose you want to know how much processes currently running on the system. So there are many ways by which we can find the number of running processes on the...
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How to print a particular line using awk in bash shell linux ?
In this article we will see how to print a particular line from a file in Linux using awk command. Many of the times, we need to grep a particular...