xgsch2pcb: 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/xgsch2pcb - from package: geda-xgsch2pcb

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

Error in other languages:
xgsch2pcb: bevel nie gevind nie
xgsch2pcb: comandă negăsită
xgsch2pcb: comando não encontrado
xgsch2pcb: commande introuvable
xgsch2pcb: command not found
xgsch2pcb: käsku ei ole
xgsch2pcb: không tìm thấy lệnh
xgsch2pcb: komanda nerasta
xgsch2pcb: Kommando nicht gefunden.
xgsch2pcb: kommandot finns inte
xgsch2pcb: komut yok
xgsch2pcb: nie znaleziono polecenia
xgsch2pcb: níor aimsíodh an t-ordú
xgsch2pcb: no se encontró la orden
xgsch2pcb: no s'ha trobat l'ordre
xgsch2pcb: opdracht niet gevonden
xgsch2pcb: parancs nem található
xgsch2pcb: perintah tidak ditemukan
xgsch2pcb: príkaz nenájdený
xgsch2pcb: příkaz nenalezen
xgsch2pcb: команда не найдена
xgsch2pcb: командата не е открита
xgsch2pcb: 命令找不到
xgsch2pcb: コマンドが見つかりません