mod2imp: 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/mod2imp - from package: sword

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

On Debian possible default full paths are:

/usr/bin/mod2imp - from package: libsword-utils

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

Error in other languages:
mod2imp: bevel nie gevind nie
mod2imp: comandă negăsită
mod2imp: comando não encontrado
mod2imp: commande introuvable
mod2imp: command not found
mod2imp: käsku ei ole
mod2imp: không tìm thấy lệnh
mod2imp: komanda nerasta
mod2imp: Kommando nicht gefunden.
mod2imp: kommandot finns inte
mod2imp: komut yok
mod2imp: nie znaleziono polecenia
mod2imp: níor aimsíodh an t-ordú
mod2imp: no se encontró la orden
mod2imp: no s'ha trobat l'ordre
mod2imp: opdracht niet gevonden
mod2imp: parancs nem található
mod2imp: perintah tidak ditemukan
mod2imp: príkaz nenájdený
mod2imp: příkaz nenalezen
mod2imp: команда не найдена
mod2imp: командата не е открита
mod2imp: 命令找不到
mod2imp: コマンドが見つかりません