Commands using less (59)

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Update your journal
prerequisite: $ mkdir ~/journal

Check to make sure the whois nameservers match the nameserver records from the nameservers themselves
Change the $domain variable to whichever domain you wish to query. Works with the majority of whois info; for some that won't, you may have to compromise: domain=google.com; for a in $(whois $domain | grep "Domain servers in listed order:" --after 3 | grep -v "Domain servers in listed order:"); do echo ">>> Nameservers for $domain from $a

Disable system bell in an X session
Execute this command in a terminal to disable the system-bell during X-session lifetime.

Show what PID is listening on port 80 on Linux

Copy files to a remote host with SFTP with a leading dot, then rename them to the real file name
Usage: $ sftp-cp * | sftp user@host:/dir This is useful if there is a process on the remote machine waiting for files in an incoming directory. This way it won't see half-transmitted files if it ignores hidden files.

Insert a line for each n lines
specially usefull for sql scripts with insert / update statements, to add a commit command after n statements executed.

Install pip with Proxy
Installs pip packages defining a proxy

find process associated with a port
e.g. fuser 25/tcp (see which pid is listening on smtp)

Dump a web page
Useful to browse dangerous web sites.

list block devices
Shows all block devices in a tree with descruptions of what they are.


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