Getting a single digit integer for RHEL version using SED or AWK

Question

I can get the 5.8 or 6.4 number from looking at /etc/redhat-release, but I don't know how to get it converted from 5.8 to just 5. The command I'm using so far is:

cat /etc/redhat-release | awk {'print $7'}

Which produces the 5.8. How would I go about getting the single digit integer from that using bash?

score 4 · Accepted Answer · answered Jun 27 '13 at 17:13

4

Or use int() function:

cat /etc/redhat-release | awk '{print int($7)}'


$ cat /etc/redhat-release | awk {'print $7'}
5.8
$ cat /etc/redhat-release | awk '{print int($7)}'
5

answered Jun 27 '13 at 17:13

jaypal singh

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score 3 · Answer 2 · answered Jun 27 '13 at 16:59

3

Add a format specifier:

cat /etc/redhat-release | awk '{printf "%d", $7}'

answered Jun 27 '13 at 16:59

devnull

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At the end of your command, it seemed there was no newline, and thus my next prompt was right on top of the integer. Your command works just as I wanted. Thank you also. – FilBot3 Jun 27 '13 at 17:22

Getting a single digit integer for RHEL version using SED or AWK

2 Answers2