tcamgr: 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/tcamgr - from package: tokyocabinet

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

On Debian possible default full paths are:

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

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

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