All command not found

J'ai voulu paramétrer mon terminal avec zsh , et aujourd'hui
plus aucune commande fonctionne.

L'idéee serait de supprimer complétement zsh de mon ordinateur et repartir avec le bash par défaut, et que toutes mes commande fonctionne.
J'ai suivi plusieurs chemin indiquer notammant par ritchie

MBP-de-Anne% /bin/ls -al | /usr/bin/grep bashrc
-rwxr-xr-x@ 1 staff 131 Aug 29 09:55 bashrc.txt
MBP-de-Anne% /bin/ls -al | /usr/bin/grep bashrc
-rwxr-xr-x@ 1 staff 131 Aug 29 09:55 bashrc.txt
MBP-de-Anne% /bin/mv .bashrc bashrc.txt
mv: .bashrc: No such file or directory
MBP-de-Anne% cd /usr/bin/ls
cd: no such file or directory: /usr/bin/ls
MBP-de-Anne% /bin/mv bashrc.txt .bashrc
MBP-de-Anne% cd /usr/bin/more .bashrc
cd: string not in pwd: /usr/bin/more
MBP-de-Anne% export PATH=/bin:/sbin:/usr/bin:/usr/sbin:$PATH
MBP-de-Anne% /bin/mv bashrc.txt .bashrc
mv: bashrc.txt: No such file or directory


MBP-de-Anne% /usr/bin/env
TERM_SESSION_ID=w1t0p0:EF568F2E-B4C5-4FA1-B914-5E9B2FD26CC9
SSH_AUTH_SOCK=/private/tmp/com.apple.launchd.vsrSoiYbVO/Listeners
LC_TERMINAL_VERSION=3.3.2
Apple_PubSub_Socket_Render=/private/tmp/com.apple.launchd.iuDNdBdZFG/Render
COLORFGBG=0;15
ITERM_PROFILE=Default
XPC_FLAGS=0x0
PWD=/Users/annefonverne/Documents/SITE WEB (EN CREATION)/perles/perlesdesterroirs
SHELL=/bin/zsh
LC_CTYPE=UTF-8
TERM_PROGRAM_VERSION=3.3.2
TERM_PROGRAM=iTerm.app
PATH=/bin:/sbin:/usr/bin:/usr/sbin:/bin:/usr/bin:/usr/local/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin
LC_TERMINAL=iTerm2
COLORTERM=truecolor
SHLVL=2
COMMAND_MODE=unix2003
TERM=xterm-256color
HOME=/Users/me
TMPDIR=/var/folders/8m/51mlvjvx4ldbwdz52_m754w80000gn/T/

XPC_SERVICE_NAME=0
LOGNAME=me
__CF_USER_TEXT_ENCODING=0x1F5:0x0:0x1
ITERM_SESSION_ID=w1t0p0:EF568F2E-B4C5-4FA1-B914-5E9B2FD26CC9
OLDPWD=/Users/me/Documents/SITE WEB (EN CREATION)/me/me
ZSH=/Users/me/.oh-my-zsh
_=/usr/bin/env





MBP-de-Anne% ls -al
total 22672
drwxr-xr-x+ 25 me staff 800 Aug 29 11:51 .
drwxr-xr-x 5 root admin 160 Aug 25 00:49 ..
-r-------- 1 me staff 7 Aug 25 10:58 .CFUserTextEncoding
-rw-r--r--@ 1 me staff 16388 Aug 29 10:18 .DS_Store
drwx------ 2 me staff 64 Aug 28 09:07 .Nuance-OmniPage-CSDK-19.2
drwx------ 38 me staff 1216 Aug 29 10:41 .Trash
-rw------- 1 me staff 183 Aug 29 11:06 .bash_history
drwx------ 13 me staff 416 Aug 29 11:30 .bash_sessions
drwx------ 3 me staff 96 Aug 28 21:58 .config
drwx------ 3 me staff 96 Aug 26 15:29 .cups
drwxr-xr-x 15 me staff 480 Aug 29 10:41 .iterm2
-rwxr-xr-x 1 me staff 6753 Aug 29 10:41 .iterm2_shell_integration.zsh
drwxr-xr-x 3 me staff 96 Aug 29 10:19 .vscode
-rw-r--r--@ 1 me staff 4433 Aug 29 10:41 .zshrc
-rw-r--r--@ 1 me staff 11558151 Aug 28 17:19 AdobeStock_119387115 [Converti].ai
drwx------@ 4 me staff 128 Aug 25 18:57 Applications
drwxrwxr-x@ 3 me staff 96 Aug 28 23:27 Creative Cloud Files
drwx------ 6 me staff 192 Aug 28 22:19 Desktop
-rw-r--r--@ 1 me staff 47 Aug 29 11:51 bashrc.txt