fig2sxd: 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/fig2sxd - from package: fig2sxd

You may install the required package with command apt-get install {package}
Error in other languages:
fig2sxd: bevel nie gevind nie
fig2sxd: comandă negăsită
fig2sxd: comando não encontrado
fig2sxd: commande introuvable
fig2sxd: command not found
fig2sxd: käsku ei ole
fig2sxd: không tìm thấy lệnh
fig2sxd: komanda nerasta
fig2sxd: Kommando nicht gefunden.
fig2sxd: kommandot finns inte
fig2sxd: komut yok
fig2sxd: nie znaleziono polecenia
fig2sxd: níor aimsíodh an t-ordú
fig2sxd: no se encontró la orden
fig2sxd: no s'ha trobat l'ordre
fig2sxd: opdracht niet gevonden
fig2sxd: parancs nem található
fig2sxd: perintah tidak ditemukan
fig2sxd: príkaz nenájdený
fig2sxd: příkaz nenalezen
fig2sxd: команда не найдена
fig2sxd: командата не е открита
fig2sxd: 命令找不到
fig2sxd: コマンドが見つかりません