zic: 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/sbin/zic - from package: glibc-common

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

On Debian possible default full paths are:

/usr/sbin/zic - from package: libc-bin

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

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