tcutest: command not found

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

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

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 CentOS possible default full paths are:

/usr/bin/tcutest - from package: tokyocabinet

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/tcutest - from package: tokyocabinet-bin

You may install the required package with command apt-get install {package}

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