Unix really doesn't use file extensions, but if you want to look for them recursively, then use:
ls -R *txt
It won't find it.
ls -la /etc | grep geeko
Type cd / to get to the root directory, get to your home directory, or get to the directory you wish to search from and type the below command.find . -size +500000 -printThis command would search for anything that's larger than 500MB. This value can be adjusted to a smaller value if no files are found that are this large.
results come from the Yahoo Directory
A crawler is the bot that crawls a site to rank it and or submit it into a search engine. A directory search engine is a website that has websites listed on it and allows you to search for what you are looking for inside of the directory.
"find / -executable" will search the root directory for executables. Not that this will also show directories that are accessible.
Keyword search is finding the most desirable keyword for your website while directory search is finding relevant directories where you can submit your website.
With the command find . -type f -perm /o+w you may want to replace "." with a different directory in which to search.
the command is - ls there are other options and flags for the ls command which can be viewed by typing man ls if you type 'man ls' in a google search, it will show you the same manual
The command ls / will list the contents of the root directory; most items will be directories or links. If you want to see only directories, ls -l / | grep ^d will give a "long" list (including information other than the directory name) but limited to those lines beginning with a "d", indicating a directory. The output of this pipeline can be piped to the awk utility to select only the last word of each line, which will be the directory name; alternatively the output can be redirected to a text file which you can then edit: ls -l / ] grep ^d > textfilename Another approach would be to use the find command to search / for entries of type d, with search depth limited to 1.
Yahoo Directory
Google!