Fritzing: 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/Fritzing - from package: fritzing

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

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