mirror of
https://gitea.com/mcereda/oam.git
synced 2026-02-09 05:44:23 +00:00
76 lines
2.7 KiB
Markdown
76 lines
2.7 KiB
Markdown
# Find
|
|
|
|
## TL;DR
|
|
|
|
```shell
|
|
# change the permissions of all files and directories in the current directory, recursively
|
|
find . -type d -exec chmod 755 {} +
|
|
find . -type f -exec chmod 644 {} +
|
|
|
|
# change the ownership of all files and directories owned by a specific user or group, recursively
|
|
find . -type d -user harry -exec chown daisy {} +
|
|
find . -type f -group users -exec chown :admin {} +
|
|
|
|
# delete all empty files and directories in the 'Documents' directory
|
|
find Documents -empty -delete # recursively
|
|
find Documents -maxdepth 1 -empty -delete # non recursively
|
|
|
|
# get the extensions of all files larger than 1MB
|
|
find . -type f -size +1M -exec basename {} \; | sed 's|.*\.||' | sort -u
|
|
|
|
# get all empty directories in a git repository (but not the repo's ones)
|
|
find $PATH_TO_REPO -type d -empty -not -path "./.git/*"
|
|
|
|
# find broken symlinks in the given directories, recursively
|
|
find $DIR1 $DIR2 $DIRN -type l -exec test ! -e {} ';' -print # posix
|
|
find $DIR1 $DIR2 $DIRN -xtype l # gnu find only
|
|
|
|
# get files by name, in numeric order regardless of the directory they are in
|
|
find . -type f -o -type l \
|
|
| awk 'BEGIN {FS="/"; OFS="|"} {print $NF,$0}' \
|
|
| sort --field-separator '|' --numeric-sort \
|
|
| cut -d '|' -f2
|
|
|
|
# print quoted file paths
|
|
# %p is for path
|
|
find . -type f -printf '%p\n'
|
|
|
|
# sort files by size
|
|
# %s is for size
|
|
find . -type f -printf '%s %p\n' | sort -nr | head -50
|
|
|
|
# get files which are executable but not readable
|
|
find /sbin /usr/sbin -executable -not -readable -print
|
|
|
|
# get files which are writable by either their owner or their group
|
|
find . -perm /220
|
|
find . -perm /u+w,g+w
|
|
find . -perm /u=w,g=w
|
|
|
|
# get files which are writable by both their owner and their group.
|
|
find . -perm -220
|
|
find . -perm -g+w,u+w
|
|
|
|
# list set-user-ID files and directories into /root/suid.txt and list large files into /root/big.txt
|
|
find / \( -perm -4000 -fprintf /root/suid.txt '%#m %u %p\n' \) , \( -size +100M -fprintf /root/big.txt '%-10s %p\n' \)
|
|
```
|
|
|
|
## Gotchas
|
|
|
|
- in GNU's `find` the path parameter defaults to the current directory and can be avoided
|
|
|
|
```shell
|
|
# delete all empty folders in the current directory only
|
|
find -maxdepth 1 -empty -delete
|
|
```
|
|
|
|
## Further readings
|
|
|
|
- [How can I find broken symlinks?]
|
|
- [find . -type f -exec chmod 644 {} ;]
|
|
- [how to output file names surrounded with quotes in SINGLE line?]
|
|
|
|
[find . -type f -exec chmod 644 {} ;]: https://stackoverflow.com/questions/19737525/find-type-f-exec-chmod-644#22083532
|
|
[how can i find broken symlinks?]: https://unix.stackexchange.com/questions/34248/how-can-i-find-broken-symlinks
|
|
[how to output file names surrounded with quotes in single line?]: https://stackoverflow.com/questions/6041596/how-to-output-file-names-surrounded-with-quotes-in-single-line#15137696
|