show_filecount: 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/show_filecount - from package: sloccount

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

On Debian possible default full paths are:

/usr/bin/show_filecount - from package: sloccount

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

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