syncqt.pl: 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 CentOS possible default full paths are:

/usr/bin/syncqt.pl - from package: qt5-qtbase-devel
/usr/lib64/qt5/bin/syncqt.pl - from package: qt5-qtbase-devel
/usr/lib/qt5/bin/syncqt.pl - from package: qt5-qtbase-devel

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/lib/x86_64-linux-gnu/qt5/bin/syncqt.pl - from package: qtbase5-dev-tools

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

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