texifysql: 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/texifysql - from package: texify

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