Contents
How to replace the content of a specific column?
Had issues using the “approved” answers, it would replace more than just the first column in the file. I use this generic command: Thanks for contributing an answer to Unix & Linux Stack Exchange! Please be sure to answer the question. Provide details and share your research! But avoid …
How to change the substitution variable in SQL?
The ampersand in front of the word “employee_id” marks it as a variable. At run-time, when it reads the statement, SQL*Plus will see the substitution variable and replace it with the current value of the specified user variable.
How big is a substitution variable in Oracle?
A numeric substitution variable holds the full range of Oracle numbers. When a command line undergoes variable substitution, the resulting line length can be no more than: 3000 bytes if it is a line of SQL (like SELECT or INSERT) or PL/SQL text (like BEGIN or CREATE PROCEDURE)
How to replace the content of a specific column with AWK?
How to replace the content of a specific column with awk? Given: there are 40 columns in a record. I want to replace the 35th column so that the 35th column will be replaced with the content of the 35th column and a “$” symbol. What came to mind is something like: It works but because it is infeasible when the number of column is as large as 10k.
Can you edit data in place in AWK?
Awk isn’t designed to edit things in-place. It’s designed to process data and write it to stdout (or another file). You can do something like this: As far as I know awk doesn’t have in-place editing as sed does (via the -i switch).
How can I use sed or preferably AWK?
I want to replace all dots . in the second column with a comma , as I would with sed ‘s/\\./\\,/g’ file how can I use sed or preferably awk to only apply this for the second column, so my output would look like this: Thanks for contributing an answer to Unix & Linux Stack Exchange!
Can A Temp File be overwritten in AWK?
You can do something like this: As far as I know awk doesn’t have in-place editing as sed does (via the -i switch). The easy solution, of course, is to use a temp file and overwrite the original file afterwards. This is the solution recommended even in comp.lang.awk.