synctex: 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/synctex - from package: texlive-binaries

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

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