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I am trying to recursively search for the below string in all my C# files. Why am I gettig this error? Took me a lontime to install CygWin and I have been using Unix forever, but this is not acting like Unix's grep. Noteworthy that I am using Cygwin for my WIndows7. Thanks
grep -R 'new IIntf' *.*
grep: *.*: No such file or directory
grep -R 'new IIntf' *.cs
grep: *.cs: No such file or directory
There may be no files matching *.* in the current directory. Perhaps you mean grep -R 'new IIntf' .
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How to hide kernel boot message on the Google Coral ?
# cat /etc/debian_version
10.0
but i can't find the grub file (i tried, like for debian, /etc/default/grub ... nothing) to edit and add "quiet" (like for a regular Ubuntu/Debian), then regenerate grub :(
embeded linux usually uses uboot instead of grub as it is too large. Specifics on how to customizing kernel should take more researches, however, you can add loglevel=0 to the kernel command line to eliminate some kernel messages.
Download boot.txt:
$ curl https://coral.googlesource.com/uboot-imx-debian/+/refs/heads/master/debian/boot.txt\?format\=TEXT | base64 --decode | tee boot.txt > /dev/null
Install mkimage:
$ sudo apt install u-boot-tools
Make your necessary changes in the cmdline="" line, for this example, we need to add "quiet loglevel=0":
cmdline=<preexsisting> + quiet loglevel=0
compile to boot.scr:
$ mkimage -A arm -T script -O linux -d boot.txt boot.scr
replace old boot image file
$ mv boot.scr > /boot
Reboot and the new kernel params should be loaded.
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I'm trying to search for a certain url across many repos via ag -l --hidden <url>, but a large number of the results look like ERR: Error opening directory ./Library/Containers/com.apple.news: Operation not permitted. I want to exclude these.
So I was running ag -l --hidden <url> | grep -v Error but then all it does is ONLY match those lines, and excludes everything else! It's like it's ignoring the -v flag for inversion.
What am I missing here?
To quote Mark Setchell's comment above:
The error messages are likely on stderr and not filtered by your grep. You probably need 2>&1 after your ag command.
That is to say, while the normal output of ag is to stdout, which is what's piped to grep, the error messages are going to stderr, which is not piped.
By using 2>&1, stderr for the ag command is redirected to stdout, so grep filters it as well.
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I'm testing an ansible role using molecule. The role install a corporate binary over which I've no insight, I'm just mean to ./binary --silent and that's it. Over RedHat.
It work for a RedHat 6.9 VM. But it doesn't work over the docker container registry.access.redhat.com/rhel6:6.9.
The error message says:
"Operating system bad language (en_US not found)".
What could be missing from the container that would be on the VM? Some localedef ...? I wasn't able to find a doc about this, but is there some RedHat description about the delta between their "minimal install from ISO" VMs and containers?
Thanks for any help
If you run locale -a on the Docker image you're using, you'll get the following output:
C
en_US.utf8
POSIX
Run the same command in your VM and compare output. If it contains line en_US (without utf-8 suffix), try adding the following lines dicrectly below FROM directive in your Dockerfile:
RUN localedef -v -c -i en_US -f UTF-8 en_US; exit 0
RUN sed -i 's/en_US.UTF-8/en_US/g' /etc/sysconfig/i18n && source /etc/sysconfig/i18n
This will generate locale en_US with encoding UTF-8 named en_US (without any suffix).
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Is it possible to create a batch file thats check if a website / url redirect to another site?
for example check if http://www.google.com/ redirect to http://www.google.com/randomsite.php/ and i would be great if it could do a status like:
www.google.dk/ Redirects to www.google.dk/randomsite.php/
for example with echo and some varible like:
echo %Google1% Redirects to %Google2%
And that would look like this
www.google.dk/ Redirects to www.google.dk/randomsite.php/
There are no built-in tools in Windows, but if you download a Windows compatible version of curl, you can use that to print the headers. This blog article seems a good place to start.
For example:
curl -sL http://www.stackoverflow.com --head | find "301" OR
curl -sL http://www.stackoverflow.com --head | find "302"
If found, the %ERRORLEVEL% variable will be greater than 0, so you can check that.
Under Linux, curl -I http://yoururl.com. You just need the first line, so start maybe with curl -I http://yoururl.com | head -n 1
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I need to know to know the full path of the command "cd" in ubuntu 10.04. Can anyone please help me find it. For example the full path of the command "dir" is "File System/bin/dir".
-Thanks in advance
cd is one of the builtin commands of bash (or similar shells).
/usr/bin/which screws up on shell builtins; type is a better alternative:
$ type cd
cd is a shell builtin