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permissions - How to chmod without /usr/bin/chmod? - Unix & Linux Stack Exchange | https://unix.stackexchange.com/
You can run the loader directly, and pass it the command you want to run:
<code class="language-bash">
/lib/ld-linux.so /bin/chmod +x /bin/chmod
</code>

Your path to the loader might vary. On a 64-bit system you need to choose the right one based on how chmod was compiled; the 64-bit version is named something like /lib64/ld-linux-x86-64.so.2

The chmod utility relies on the chmod() system call (see man 2 chmod). So you could do this with a few lines of C, or just about any other language that has a wrapper around it (which would be most of them). Very few *nix systems are going to lack a C compiler and a perl interpreter; most linux distros require the later to work.
<code class="language-bash">
perl -e 'chmod 0755, "foobar.file"'
</code>
linux  unix  sysadmin  chmod  tipsandtricks  disasterrecovery 
march 2019 by kme
Ubuntu 16.04 ssh: sign_and_send_pubkey: signing failed: agent refused operation - Ask Ubuntu
client-side private key permissions.

$ ssh root@192.168.1.1
sign_and_send_pubkey: signing failed: agent refused operation

The file permissions were too open (0644).

The following command solved it:

chmod 600 ~/.ssh/id_rsa
ubuntu  ssh  keys  chmod 
march 2019 by exnihilo
MacParc - RiparaCapo
Repair disk permissions on OS X 10.11 or newer
rights  tool  rwx  rightsmanagement  filesystem  chmod  acl  macos  security  utility 
september 2018 by ferdinandfuchs
node.js - npm ERR! Error: EPERM: operation not permitted, rename - Stack Overflow
move those files/folders that need to be renamed,changed permissions out of the folder that is shared wtth the host and symlink back
permission  permissions  chmod  rename  mv  web  dev  computing  nfs  share  guest  vm  host 
september 2018 by therobyouknow
macos - What does "@" signify in unix file permissions? - Ask Different
# List FILE's extended attributes
#~~~~~~~~~~~~~~~~~~~~~~~
ls -@l FILE

# Remove some ext. attributes
#~~~~~~~~~~~~~~~~~~~~~~~
sudo xattr -d com.apple.quarantine FILE
sudo xattr -d com.apple.metadata:kMDItemWhereFroms FILE
mac  macos  ACL  chmod  file  mode  filemode  read  write  execute  permission  change  remove  modify  set  list  at  @  sign  attribute  extended 
july 2018 by ebouchut
chmod files or directories only in all subdirectories - Ask Ubuntu
find . -type f -exec chmod 664 -- {} + &&find . -type d -exec chmod 775 {} +
Linux  chmod  cli  command  Computers  recursive 
june 2018 by themanjay
Chmod/Chown WSL Improvements – Windows Command Line Tools For Developers
sudo mount -t drvfs C: /mnt/c -o metadata,uid=1000,gid=1000,umask=22,fmask=111
linux  windows  wsl  chmod  chown 
april 2018 by chlopakrzeznika
Chmod Calculator
An awesome Chmod Calculator to convert Linux file permissions between different formats.
Linux  Chmod  Tietokone  Terminal 
january 2018 by Remus

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