installmgr: 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/installmgr - from package: sword

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

On Debian possible default full paths are:

/usr/bin/installmgr - from package: libsword-utils

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

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