closestBed: 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/closestBed - from package: BEDTools

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

On Debian possible default full paths are:

/usr/bin/closestBed - from package: BEDTools

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

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