What is IFS in linux bash shell ?
1. Introduction IFS stands for Internal Field Separator in Linux. $IFS is one of the system variable with default value “space, tab, and a new line”. This system variable signifies...
Tag: words
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Regex to look for multiple characters or words in linux bash shell ?
Today we will look at the regex to search/grep multiple characters or words from a file or output in linux. First create a file with below contents. [root@nglinux ]# cat...
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How to count words in a file without using wc command ?
To count number of words in a file, we can either use wc command, or use a loop or can use extended grep command. Lets see the easiest two approaches...
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How to split a line into words in Linux ?
Today we will look at an interesting article to know how to split a line into words using extended grep command. Splitting a Line into Words [root@nglinux ~]# echo "Welcome...