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ack seeks for , list all found files and display everything in nice colors. Look for it in http://betterthangrep.com/
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This is how I typically grep. -R recurse into subdirectories, -n show line numbers of matches, -i ignore case, -s suppress "doesn't exist" and "can't read" messages, -I ignore binary files (technically, process them as having no matches, important for showing inverted results with -v)
I have grep aliased to "grep --color=auto" as well, but that's a matter of formatting not function.
Searches all files,dirs (also hidden) recursively
shorter typing with no need to use xargs.
options: -n line nbrs, -i ignore case, -s no "doesn't exist", -I ignore binary
args: * for all files of current dir (not hidden), .[!.]* for all hidden files
I don't include by default the -R (recursive) option, which is not always useful. You add it by hand when needed.
If you can do better, submit your command here.
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