dom-git-checkout: command not found

Have You tried accessing the binary with the full path?

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/dom-git-checkout - from package: dh-ocaml

You may install the required package with command apt-get install {package}
Error in other languages:
dom-git-checkout: bevel nie gevind nie
dom-git-checkout: comandă negăsită
dom-git-checkout: comando não encontrado
dom-git-checkout: commande introuvable
dom-git-checkout: command not found
dom-git-checkout: käsku ei ole
dom-git-checkout: không tìm thấy lệnh
dom-git-checkout: komanda nerasta
dom-git-checkout: Kommando nicht gefunden.
dom-git-checkout: kommandot finns inte
dom-git-checkout: komut yok
dom-git-checkout: nie znaleziono polecenia
dom-git-checkout: níor aimsíodh an t-ordú
dom-git-checkout: no se encontró la orden
dom-git-checkout: no s'ha trobat l'ordre
dom-git-checkout: opdracht niet gevonden
dom-git-checkout: parancs nem található
dom-git-checkout: perintah tidak ditemukan
dom-git-checkout: príkaz nenájdený
dom-git-checkout: příkaz nenalezen
dom-git-checkout: команда не найдена
dom-git-checkout: командата не е открита
dom-git-checkout: 命令找不到
dom-git-checkout: コマンドが見つかりません