Comparing to specific line in file bash script
I have a value stored in x and I need to compare it to the numbers in every other line of a file. The file contains alternating lines of numbers and letters:
I need to compare x to the numbers in every other line without the first four characters of that line. So I want to compare x to 1111, then to 2222, then 3333. This is to be the condition in an if statement:
if [ $x = (line 1 without first four characters) ]
if [ $x = (line 3 without first four characters) ]
I know I would have to use something along the lines of = $(sed something) or maybe cut, but I don't know how to reference the file by line.
Let me know if I need to be more clear. Thanks for any help!
If you show you've put some effort into things, and tell us where you're stuck, you're much more likely to get a favorable response.
another good trick here---found by Google using "sed print line)
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