strigiclient: 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/strigiclient - from package: strigi

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

On Debian possible default full paths are:

/usr/bin/strigiclient - from package: strigi-client

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

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