OpenSwathConfidenceScoring: 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/OpenSwathConfidenceScoring - from package: topp

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