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Commands using tac from sorted by
Terminal - Commands using tac - 12 results
tac ~/.bash_history | grep -w
2013-09-07 15:53:30
User: hamsolo474
Functions: grep tac
-3

greps your bash history for whatever you type in at the end returning it in reverse chronological order (most recent invocations first), should work on all distros.

works well as an alias

tac filename.txt
tac [FILE]
cat -n install.log | head -88 | tac | head -n $(( 88 - 50 )) | tac
cat -n install | head -n 150 | tac | head -n 50 | tac
tac $FILETOREVERSE
tac $FILE
cat $(ls -c | grep ogg | tac ) > directory/test.ogg
tac -r -s "." FILENAME
find . -type d | tac | xargs rmdir 2> /dev/null
2010-03-23 11:54:38
User: drmaciver
Functions: find rmdir tac xargs
-1

Remove all empty directories below the current directory. If directories become empty as the results of this, remove those too.

( cat badfile.log ; tac badfile.log | tac ) > goodfile.log
2009-04-21 22:06:05
User: flux
Functions: cat tac
15

man tac

When there is a bad block in the middle of your file, you can see its begninning with `cat' and its end with `tac'. But both commands terminates with an error. So this sequence rebuilds a new file without badblock.

tac file.txt
2009-02-05 16:54:45
User: systemj
Functions: tac
8

Or "tail -r" on Solaris.