I am working on the Linux terminal and I want to know how to search for c files in a certain directory. I have it working for the current directory but how do I do it for the directory usr/
for the current directory i did
grep -l "main" *.c
so I'd like to know how to search in the /usr directory without changing the directory first. Thanks.
You should just be able to prefix the directory name you want to the file pattern you want to search.
grep -l "main" /usr/*.c
You could also use:
find /usr/ -name "*.c"
if it is just the C files in the /usr/ directory you are after.
Related
I want to find all the hidden files inside a directory in linux terminal.
I have found out that we have a grep command to search for the file but I need to search for hidden files.
grep -r search *
Any help would be appreciated. Thanks.
try this on your terminal too show all the hidden files on your system:
find / -name ".*" 2> /dev/null
or you can use other way like in this web https://devconnected.com/how-to-show-hidden-files-on-linux/
Simply use (with GNU grep)
grep -r search .
if you want to search contents of files in the current directory and its subdirectories recursively.
Note: It isn't clear if you want to search filenames or contents of files.
The proper solution:
find /dir -name '.*' -type f
If by "hidden file" you mean Linux file names that begin with . that are often hidden by default, (and directories starting with . whose contents might also be considered "hidden") then try this command:
find . -print | grep '/\.'
I have a directory:
test/test1/file1.sh
test/file2.sh
What i need as a output:
file1.sh
file2.sh
I need to hide the dir.path at the output
It depends on your criteria which files should be included in the output, but if you want to print the names of all *.sh files under test/, you can do:
$ find <path_to_test_folder> '*.sh' -printf %f\\n
(If you're running it from the root folder of the search, you can drop the <...> part.)
Can someone explain me what does this command do and if I want to try the same thing using git, how should I modify this command?
find . -name CVS -print -exec rm -fr {} \;
This command looks in your current working directory for any directories or files named "CVS" and prints the full path. Then executes a forced recursive removal for each result returned by the find command.
Since there is no filetype present in the name, this command will remove any directory, within your current working directory, named CVS, including all subdirectories and files housed within.
I'm new to linux and as an exercice I need to copy the "etc" files that end with a digit from home directory to the test1 directory
(with one command).
I tried this but it dosn't work
find /etc -type f -iname "*[3-9]" -exec cp {} ../test1/ \;
this should work for your home directory files ending with digit
mv `ls . |grep -Eo "^.*[0-9]$"` your-directory
lets says in the current directory you have some files like ofjweifhwef9 or kfhiofeh8 ( files ending with digit)
so ls will list them.
this grep expression "^.*[0-9]$"` will find only files ending with digit. ( because in your home directory system wont allow to have a file like this "/etc/somefile123")
and then mv will move those files to your-directory
note :- if grep cannot find the files ending with number you will see an error ofcourse because mv needs 2 operands but since it wasn't there so error.
mv: missing destination file operand after './your-directory'
It is probably because /etc is a link in the system that you're using, and find doesn't seem to consider it a path until you add an extra / at the end. Try this instead:
find /etc/ -type f -iname "*[3-9]" -exec cp {} ../test1/ \;
Notice the /etc/ instead of /etc. I get the same behavior on my Mac where /etc is a link to another directory.
Of course, also make sure that you have files which names end on a digit under the /etc/ directory tree. I have none in my mac. You should get some files when you run:
find /etc/ -type f -iname "*[3-9]"
If you don't, you don't have any files to copy. You may also try: find /etc/ to see all files under the directory tree.
Finally, you may want to add the option: -depth 1 if you only want to copy the files in the /etc/ directory, as opposed to all the files that match in the directory tree under /etc/.
Enter a Linux command to create the empty file called 'test1' in the directory 'systems' (you are still in your home directory).
Assuming 'systems' is a subdirectory of the current directory:
touch systems/test1
Assuming that you only know that the directory 'systems' is some subdirectory in the directory tree of the current directory then: find . -name systems -type d -exec touch "{}/test1" \; Will create such a file. Alternately, so will find . -name systems -type d -execdir touch systems/test1 \; However, both will do so in every subdirectory named 'systems' in the current directory tree. We could limit that action to only the first, the last, or some other criteria, but the list of possible permutations is just too long.
You really have not provided enough information for us to provide a complete answer.