photofloat: command not found

Have You tried accessing the binary with the full path?

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/photofloat - from package: photofloat

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