aecomp: 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 Debian possible default full paths are:

/usr/bin/aecomp - from package: aegis-tk

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

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