abidw: 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/abidw - from package: libabigail

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

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