update

Author: cramforce

README.md

@@ -233,15 +233,15 @@ pnpm shell --no-network
 
 ### File Operations
 
-`cat`, `cp`, `ln`, `ls`, `mkdir`, `mv`, `readlink`, `rm`, `stat`, `touch`, `tree`
+`cat`, `cp`, `file`, `ln`, `ls`, `mkdir`, `mv`, `readlink`, `rm`, `stat`, `touch`, `tree`
 
 ### Text Processing
 
-`awk`, `base64`, `comm`, `cut`, `diff`, `grep`, `head`, `jq`, `md5sum`, `printf`, `sed`, `sha1sum`, `sha256sum`, `sort`, `tail`, `tr`, `uniq`, `wc`, `xargs`
+`awk`, `base64`, `comm`, `cut`, `diff`, `grep` (+ `egrep`, `fgrep`), `head`, `jq`, `md5sum`, `od`, `paste`, `printf`, `sed`, `sha1sum`, `sha256sum`, `sort`, `tac`, `tail`, `tr`, `uniq`, `wc`, `xargs`
 
 ### Navigation & Environment
 
-`basename`, `cd`, `dirname`, `du`, `echo`, `env`, `export`, `find`, `printenv`, `pwd`, `tee`
+`basename`, `cd`, `dirname`, `du`, `echo`, `env`, `export`, `find`, `hostname`, `printenv`, `pwd`, `tee`
 
 ### Shell Utilities