linefind: 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 Debian possible default full paths are:

/usr/bin/linefind - from package: hugin-tools

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

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