Questions tagged [tac]
The tac tag has no usage guidance.
4
questions
2
votes
3answers
190 views
Reversing a file line-wise and character-wise
Input:
hello
enrico
output:
ocirne
olleh
To do this, I can simply tac a file and pipe the output to rev (or the other way around), so one function that does the job is just this:
revtac() { tac &...
12
votes
2answers
948 views
Explanation of tac --before
-b, --before
The separator is attached to the beginning of the record that it
precedes in the file.
And I can't understand the following output:
$ echo -e "Hello\nNew\nWorld\n!" > file
$ ...
1
vote
1answer
129 views
Usage of readarray and tac
I have a file containing "lines" of text, for now only two lines.
I need to create a reversed array of these lines - FIFO style.
Using "readarray" in this fashion works fine:
readarray -t FileArray &...
5
votes
2answers
1k views
reverse file character by character using tac
I want to use the tacto reverse a text file character by character. On the info page for coreutils I found an example saying: #Reverse a file character by character tac -r -s 'x\|[^x]'
However ...
