ident: 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/ident - from package: rcs

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

On Debian possible default full paths are:

/usr/bin/ident - from package: afterstep
/usr/bin/ident - from package: rcs
/usr/lib/news/bin/auth/resolv/ident - from package: inn2

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

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