UNIX for Dummies Questions & Answers

What do you mean with "and =>420000" ?

---------- Post updated at 06:25 PM ---------- Previous update was at 06:06 PM ----------

Do you mean

"The substring from character 12 to character 17 of the second field is greater than 420000"

????

By respect for people who read you and help you, please make some effort to clarify your explainations, please also take the time to write full words like "because" instead of "bc" or reread the forum rules.

By the way you still didn't provide a representative example that demonstrate the behaviour you expect, or the way you explained it is still not clear enough.

I am willing to help you but i cannot do it in an efficient way from blurred and/or insufficient/unclear information.

If someone reading this thread understand better than me what tjmannonline expects, thanks to put it simply for my limited brain, because so far it looks i just don't get it

let me rephrase my need:

content looks like this:

2079951061790 SCK0000903092000000000000021300
2079951061790 SCK0000903090000000000000021300

2079951074758 SCK0000420421000000000000092750
2079951074758 SCK0000420401000000000000092750

complet output should look like this:

2079951061790 LCK0000903092000000000000021300
2079951061790 SCK0000903090000000000000021300

2079951074758 LCK0000420421000000000000092750
2079951074758 SCK0000420401000000000000092750

if 2079951061790 exits, and equal or greater then 920000 exists in col48-55, then replaceALL SCK with LCK, else, leave as is.

if 2079951074758 exists, and equal or greater then 420000 exists in col48-55, then replaceALL SCK with LCK, else, leave as is.

90000000 and 420000000 does not start at the same column (so in my example i take from column 25 to 33,but you can adjust those values to your own needs)

Code:

# cat tst
2079951061790 SCK0000903092000000000000021300
2079951061790 SCK0000903090000000000000021300

2079951074758 SCK0000420421000000000000092750
2079951074758 SCK0000420401000000000000092750
# awk '{p=substr($0,25,9)}($1==2079951061790&&p+0>90000000)||($1==2079951074758&&p+0>420000000){sub("SCK","LCK",$0)}1' tst
2079951061790 LCK0000903092000000000000021300
2079951061790 SCK0000903090000000000000021300

2079951074758 LCK0000420421000000000000092750
2079951074758 SCK0000420401000000000000092750
#