tar -Sczvf sparse_file.tar.gz sparse_file
My Tech Notes
Search This Blog
Compress sparse files preserving their holes
use -S option for tar
Find sparse files in Linux
find ./ -type f -printf "%S\t%p\n" | awk '$1 < 1.0 {print}'
find ./ -type f -printf "%S\t%p\n" | awk '$1 < 1.0 {print $2}'
To find and remove the sparse files:
find ./ -type f -printf "%S\t%p\n" | awk '$1 < 1.0 {print $2}' | xargs rm -f
To find and compress the sparse files:
find ./ -type f -printf "%S\t%p\n" | awk '$1 < 1.0 {print $2}' | xargs -I {} sh -c "tar -Sczvf {}.tar.gz {}; rm -f {}"
Excel custom formatting cells for file sizes (GB and TB)
[<1000000]0.00," KB";[<1000000000]0.00,," MB";0.00,,," GB"
[<1000000000]0.00,," MB";[<1000000000000]0.0,,," GB";0.0,,,," TB"
SSH public key authentication rejected with debug message: no mutual signature algorithm
ssh user@remote-server -vvvv
debug1: no mutual signature algorithm
Cause
The RSA SHA-1 hash algorithm is being quickly deprecated across operating systems and SSH clients because of various security vulnerabilities, with many of these technologies now outright denying the use of this algorithm.
Solution
Generate SSH key using ED25519 algorithm:ssh-keygen -t ed25519
See also
Subscribe to:
Posts (Atom)