textcat: 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/textcat - from package: textcat

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

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