fastaclip: 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/fastaclip - from package: exonerate

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

On Debian possible default full paths are:

/usr/bin/fastaclip - from package: exonerate

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

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