Two questions to ask:
1. I am using scp command to copy a file from a remote server, I am wondering how can I specify the place where to paste the copied file on my local computer?
for example, if I wanna copy a test.txt file from a remote server and paste it on my local computer under /home/myname/tmp/ what is the proper command?
is it
scp SERVER_ADDRESS /home/myname/tmp/
2. If I want to search a file whose name contain text of "test" , what is the command I should use? I mean search for any file with name test , ('_' is a wildcard)
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what is the difference between "find" and "grep"?
1:
scp SERVER_ADDRESS:/path/to/remote/file.txt /path/to/local/file.txt
2:
find . -name "*test*"
This will search for files/directories containing "test" anywhere in the filename. The search will start from the current directory . To search in another path, use find /path/ -name "*test*". If you only want to search in files, that is, exclude directories, then add -type f before the -name option.
First man scp is your friend (as are all man pages in general).
Yes: in full, that'd be like scp server:/path/to/file.txt /local/path/.
Your main options here are:
locate test (if you have locate installed and its database is up to date)
-or-
find /path/name -name '*test*' to find any named files inside the /path/name directory and all its children.
Related
I am using CentOS Linux release 7.0.1406 on virtual box. I am trying to find the files using find command.
this find command is not giving any response:
find . -name "orm.properties"
My current working directory is /eserver6. File orm.properties is present in /eserver6/share/system/config/cluster, but find command is not able to find the file.
I have tried other combinations like
find . -name "orm.*"
find . -name 'orm*'
this is finding few files staring with orm but not all the files present inside the current working directory.
The command line looks correct and it should find the file. Some reasons why it might fail:
You don't have permission to enter one of the folders in the path to /eserver6/share/system/config/cluster.
You made a typo
The file system is remote and the remote file system behaves oddly
There is a simlink somewhere in the path. By default, find doesn't follow symlinks to avoid recursive loops. Use find /eserver6 -L ... to tell find to look at the target of the link and follow it if it's a folder.
The command
find /eserver6 -name "orm.properties"
should definitely find the file, no matter where you are. If it doesn't, look at -D debugoptions in the manpage. You probably want -D stat to see at which files find looks and what it sees.
If your user have entry into sudoers file then its ok and you can run
sudo find / -name "orm.properties"
or else ask your admin to give an entry in sudoers file of your user and run the same command then it will work.
I need to transfer a bunch of files from a production host to my local machine. I'm already in the directory that I need to transfer the files from. I know the names of log files that I need to transfer to my local machine. They are log.timestamp.hostnames and these tend to be long. How can I transfer in bulk using scp ? Is there an easier way than just typing the long file names ? Can I get it out from a filename ?
Use wildcards:
scp log.* user#host:/target/directory
If you didn't want to copy over all of your files in the current directory (which would just be using ./*), what you could do is parse all of the files in your current directory and run a regular expression on it to match up log.timestamp.hostname then pipe that into scp. For the regex I found this example regex with find. To send big files here is an example: scp syntax. Something along the lines of:
scp $(find . -regextype sed -regex ".*/log\.[a-z0-9\-]\.[a-z0-9\-]") user#remote:~/
You will probably want to modify the regex to make it work.
This command line execution option helped to solve my issue of transfering a subset of files. As the AIX unix does not provide the -regextype option with find I used the grep command instead in order to retrieve files tab1.msg to tab9 msg
scp $(find . -name "*" | grep tab.\.msg) user#host:/tmp
Presently i am using linux(Fedora 15) and i ma trying to search a folder in the entire file system like with below command
find / -name "apache-tomcat*"
The execution of the above command is taking more and more time that a user cant wait and results are some thing like below
[root#user fedrik]# find / -name "apache-tomcat*"
find: `/proc/6236/task/6236/ns/net': No such file or directory
find: `/proc/6236/task/6236/ns/uts': No such file or directory
find: `/proc/6236/task/6236/ns/ipc': No such file or directory
find: `/proc/6236/ns/net': No such file or directory
find: `/proc/6236/ns/uts': No such file or directory
find: `/proc/6236/ns/ipc': No such file or directory
find: `/proc/6462/task/6462/ns/net': No such file or directory
.................
.................
But as i have mentioned it is taking long time to process and sometimes it is been strucked, so can anyone please let me know on how to search a particular folder by name with a command from linux terminal that will be very fast and should search in the entire file system like above i used '/'
Edit
Actually my intention is to search the folder something like apache-tomcat-7.0.37 in the entire filesystem,
for example there may be many folders like apache-tomcat-6.0.45, apache-tomcat-5.1.7, apache-tomcat-5.0.37........... on different locations on filesystem
So as we can observe only the last part(which is numerical part) is changing and the entire folder name is same, so is there a way to search for these kind of folders irrespective of the last numerical part , like by using regular expression or somethingl ike that.
Finally my intention is to find the folders of the format apache-tomcat-xxxxxxx on the entire file system, because if we search for just apache-tomcat we will get hundreds of results and even thousands too sometimes which is difficult to analyze and search from them
?
Try this:
locate apache-tomcat
It uses a database (updated by the hilariously-named updatedb, which you can run with sudo updatedb to refresh the search index).
locate apache-tomcat | grep -E '^apache-tomcat-[[:digit:]]+\.[[:digit:]]+\.[[:digit:]]+$'
or just use [0-9] instead of [[:digit:]]. That's probably more readable. Or
locate apache-tomcat | perl -ne 'print if /^apache-tomcat-\d+\.\d+\.\d+$/'
Whatever you do, you definitely want to use locate instead of find, as it will be much faster.
I'm fairly new to Linux (CentOS in this case). I have a folder with about 2000 files in it. I'd like to ideally execute a command at the command prompt that would write out the name of all the files into a single txt file.
If I have to, I could write an actual program to do it too, I was just thinking there might be a way to simply do it from the command prompt.
you can just use
ls > filenames.txt
(usually, start a shell by using "Terminal", or "shell", or "Bash".) You may need to use cd to go to that folder first, or you can ls ~/docs > filenames.txt
If only names of regular files immediately contained within a directory (assume it's ~/dirs) are needed, you can do
find ~/docs -type f -maxdepth 1 > filenames.txt
I'm trying to write a shell script under linux, which lists all folders (recursively) with a certain name and no symlink pointing to it.
For example, I have:
/home/htdocs/cust1/typo3_src-4.2.11
/home/htdocs/cust2/typo3_src-4.2.12
/home/htdocs/cust3/typo3_src-4.2.12
Now I want to go through all subdirectories of /home/htdocs and find those folders typo3_*, that are not pointed to from somewhere.
Should be possible with a shellscript or a command, but I have no idea how.
Thanks for you help
Stefan
I think none of the common file systems store if there are symlinks pointing to this file in the file node, so you would have to scan all other files to see if it is a symlink to this one. If you don't limit your depth of search to a certain level, this might take a very long time. If you want to perform that search in /home/htdocs, for example, it would work something like this:
# find specified folders:
find /home/htdocs -name 'typo3_*' -type d | while read folder; do
# list all symlinks pointing to $folder
find -L /home/htdocs -samefile "$folder"|grep -v "$folder\$"
done