msgcomm: 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/msgcomm - from package: gettext

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

On Debian possible default full paths are:

/usr/bin/msgcomm - from package: gettext

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

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