I am wanting to change the username and password in all my config files
What would the command be in SSH to find
$txpcfg['user'] = 'EXAMPLE-1';
And change it across my server to:
$txpcfg['user'] = 'EXAMPLE-2';
sed can be used with the -i flag to do in-line replacement.
Something like:
find /path/to/workingDir -name *.config -type f -print0 | xargs -0 sed -i 's/\$txpcfg\[\'user\'\]\ = \'$oldUser\';/\$txpcfg\[\'user\'\]\ \=\ \'$newUser\';/g'
That regex / search pattern can probably be cleaned up.
Related
I found the number of files in /dev/shm/split/1/ to be 42806 using:
/bin/ls -lU /dev/shm/split/1/ | wc -l
What I can't seem to find anywhere online is how to select a certain range, say from 21404-42806, and use scp to securely copy those files. Then, for management purposes, I would like to move the files I copied to another folder, say /dev/shm/split/2/.
How do I do that using CentOS?
I tried:
sudo chmod 400 ~/emails/name.pem ; ls -1 /dev/shm/split/1/ | sed -n '21443,42806p' | xargs -i scp -i ~/emails/name.pem {} root#ipaddress:/dev/shm/split/2/
This produced:
no such file or directory
errors on all of the files...
ls itself lists files relative to the directory you give. This means your ls prints the filenames in the directory, but later on, scp doesn't have the path to them. You can fix this two ways:
Give the path to scp:
ls -1 /dev/shm/split/1/ | sed -n '21443,42806p' | xargs -i \
scp -i ~/emails/name.pem /dev/shm/split/1/{} root#ipaddress:/dev/shm/split/2/
Change to that directory and it will work:
cd /dev/shm/split/1/; ls -1 | sed -n '21443,42806p' | xargs -i \
scp -i ~/emails/name.pem {} root#ipaddress:/dev/shm/split/2/
I've been having problems with multiple hidden infected PHP files which are encrypted (ClamAV can't see them) in my server.
I would like to know how can you run an SSH command that can search all the infected files and edit them.
Up until now I have located them by the file contents like this:
find /home/***/public_html/ -exec grep -l '$tnawdjmoxr' {} \;
Note: $tnawdjmoxr is a piece of the code
How do you locate and remove this code inside all PHP files in the directory /public_html/?
You can add xargs and sed:
find /home/***/public_html/ -exec grep -l '$tnawdjmoxr' {} \; | xargs -d '\n' -n 100 sed -i 's|\$tnawdjmoxr||g' --
You may also use sed immediately than using grep -but- it can alter the modification time of that file and may also give some unexpected modifications like perhaps some line endings, etc.
-d '\n' makes it sure that every argument is read line by line. It's helpful if filenames has spaces on it.
-n 100 limits the number of files that sed would process in one instance.
-- makes sed recognize filenames starting with a dash. It's also commendable that grep would have it: grep -l -e '$tnawdjmoxr' -- {} \;
File searching may be faster with grep -F.
sed -i enables inline editing.
Besides using xargs it would also be possible to use Bash:
find /home/***/public_html/ -exec grep -l '$tnawdjmoxr' {} \; | while IFS= read -r FILE; do sed -i 's|\$tnawdjmoxr||g' -- "$FILE"; done
while IFS= read -r FILE; do sed -i 's|\$tnawdjmoxr||g' -- "$FILE"; done < <(exec find /home/***/public_html/ -exec grep -l '$tnawdjmoxr' {} \;)
readarray -t FILES < <(exec find /home/***/public_html/ -exec grep -l '$tnawdjmoxr' {} \;)
sed -i 's|\$tnawdjmoxr||g' -- "${FILES[#]}"
i have a large number of files under a directory. out of that i need to search for a pattern ONLY in files which were created/last modified on the month of November. By using Awk and xargs command i was able to acheive this. But I would like to know whether there is a simple grep command to acheive the same. Below is the command which I used
ls -ltr |grep "Nov"|awk '{print $9}'|xargs grep -i (pattern)
Could you please help me on this one ?
Use the find command:
find . -newermt 2013-11-1 ! -newermt 2013-11-30 -type f -print0 | xargs -0 grep -i pattern
I am trying to grep for the .dat string in all my *.mk files using the below command. I am wondering if this is right, because it doesn't give me any output.
find . -name "*.mk" | grep *.dat
No it's not right, there are a couple of issues: 1) you seem to be supplying grep with a glob pattern, 2) the pattern is not quoted and will be expanded by the shell before grep ever sees it, 3) you're grep'ing through filenames, not file contents.
To address 1), use Basic Regular Expression, the equivalent here would be .*\.dat or just .dat. 2) is a matter of using single or double-quotes. 3) find returns filenames, so if you want grep to operate on each of those files either use the -exec flag for find or use xargs. All these taken together:
find . -name '*.mk' | xargs grep '.dat'
Use Find's Exec Flag
You don't really need a pipeline here, and can bypass the need for xargs. Use the following invocation to perform a fixed-string search (which is generally faster than a regex match) on each file found by the standard find command:
find . -name '*.mk' -exec grep -F .dat {} \;
If you're using GNU find, you can use this syntax instead to avoid the process overhead of multiple calls to grep:
find . -name '*.mk' -exec grep -F .dat {} +
Use xargs:
find . -name "*.mk"| xargs grep '\.dat'
Using exec option in find command this way:
find . -name "*.mk" -exec grep ".dat" \{\} \;
I want to make a list of files of locate's output.
I want scp to take the list.
I am not sure about the syntax.
My attempt with pseudo-code
locate labra | xargs scp {} masi#11.11.11:~/Desktop/
How can you move the files to the destination?
xargs normally takes as many arguments it can fit on the command line, but using -I it suddenly only takes one. GNU Parallel http://www.gnu.org/software/parallel/ may be a better solution:
locate labra | parallel -m scp {} masi#11.11.11:~/Desktop/
Since you are looking at scp, may I suggest you also check out rsync?
locate labra | parallel -m rsync -az {} masi#11.11.11:~/Desktop/
Typically, {} is a findism:
find ... -exec cmd {} \;
Where {} is the current file that find is working on.
You can get xargs to behave similar with:
locate labra | xargs -I{} echo {} more arguments
However, you'll quickly notice that it runs the commands multiple times instead of one call to scp.
So in the context of your example:
locate labra | xargs -I{} scp '{}' masi#11.11.11:~/Desktop/
Notice the single quotes around the {} as it'll be useful for paths with spaces in them.