tcucodec: 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/tcucodec - from package: tokyocabinet

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

On Debian possible default full paths are:

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

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

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