AWK replace and write a column value in the input file
Ask ion Asked 11 years 8 months ago Modified 2 years 8 months ago Viewed 36k times 14 I am trying to replace the 3 column values of the input file if 3 is 100 I tried awk BEGIN FS t if 3 100 3 3 100 print test stat
How to replace the content of a specific column with awk , What came to mind is something like awk print 1 2 35 36 40 It works but because it is infeasible when the number of column is as large as 10k I need a better way to do this linux text processing awk replace Share Follow edited Oct 28 2015 at 1 40 Thomas Dickey 75 7k 9 173 271 asked Jun 10 2014 at 3 40 Marcus Thornton
Awk replace string where specific condition is true using variables
1 Answer Sorted by 2 I would suggest something like this awk v FS v OFS v var1 v1 v var2 v2 2 var2 1 var1 1 filename 0 20220808163547 1224 20220808163547 2048 20220808170514 2048 20220808170514
Replacing variable value in a loop in awk doesn t replace, 1 The return value of gsub is the number of replacements made So ip gsub AIPlan Plan sets ip to the number of replacements It doesn t hold the IP address any more
Awk Find And Replace Fields Values nixCraft
Awk Find And Replace Fields Values nixCraft, How do I replace all from 3rd field using awk and pass output to bc l in the following format to get sum of all numbers 12300 50 2300 50 1 22 300 50 You can use gsub funcion as follows The syntax is gsub find replace gsub find regex replace gsub find regex replace t gsub r s t From the awk man page
How Can I Use SED Or AWK To Replace Placeholders In A Template File
How to Use Shell Variables in an AWK Script Baeldung on Linux
How to Use Shell Variables in an AWK Script Baeldung on Linux Embed Shell Variable Naturally one way to use the value of a shell variable in AWK is to directly interpolate it within the context of a string i e the script var data awk BEGIN print shell var var shell var data Here we glue quotes appropriately to end up with the desired value
Unix Linux AWK Replace Field Value By Matching Fields In Two Files
No of course not Even if your command were correct awk wouldn t modify the file only print out the changed contents newer versions of GNU awk can do this but never mind Please edit your ion and explain how you are feeding the while loop As it is it will never work And please explain why you need awk Awk awk with variables file Unix Linux Stack Exchange. 1 Answer Sorted by 2 By enclosing 300 in quotes you have forced a lexical rather than numeric comparison To compare numerically omit the quotes awk if 2 300 2 300 print 0 or more idiomatically awk 2 300 2 300 1 Share Improve this answer Follow answered Jul 31 2019 at 23 01 steeldriver 133k 21 241 332 Unlike just about every tool that provides regexp substitutions awk does not allow backreferences such as 1 in replacement text GNU Awk gives access to matched groups if you use the match function but not with or sub or gsub Note also that even if 1 was supported your snippet would append the string 11 not perform a numerical computation Also your regexp isn t quite right you re
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