solid2fastq: 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

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/solid2fastq - from package: bfast

You may install the required package with command yum install {package}
Error in other languages:
solid2fastq: bevel nie gevind nie
solid2fastq: comandă negăsită
solid2fastq: comando não encontrado
solid2fastq: commande introuvable
solid2fastq: command not found
solid2fastq: käsku ei ole
solid2fastq: không tìm thấy lệnh
solid2fastq: komanda nerasta
solid2fastq: Kommando nicht gefunden.
solid2fastq: kommandot finns inte
solid2fastq: komut yok
solid2fastq: nie znaleziono polecenia
solid2fastq: níor aimsíodh an t-ordú
solid2fastq: no se encontró la orden
solid2fastq: no s'ha trobat l'ordre
solid2fastq: opdracht niet gevonden
solid2fastq: parancs nem található
solid2fastq: perintah tidak ditemukan
solid2fastq: príkaz nenájdený
solid2fastq: příkaz nenalezen
solid2fastq: команда не найдена
solid2fastq: командата не е открита
solid2fastq: 命令找不到
solid2fastq: コマンドが見つかりません