Commands tagged mac os x (35)

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extract email adresses from some file (or any other pattern)
Simply more email-adresses matched

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

find which lines in a file are longer than N characters
Filter out lines of input that contain 72, or fewer, characters. This uses bash only. ${#i} is the number of characters in variable i.

pushd rotates the stack so that the second directory comes at the top.
'pushd +1' is equivalent to 'pushd'. Can be 'pushd +3' or more generaly 'pushd +N'. Can also be 'pushd -N'. More description in 'man bash'.

Scan for new SCSI devices
Issues a scan command on the given scsi host adapter (ex. a fibre channel adapter, in the example above on host0). Output can be watched in the messages log or in "dmesg"

get the ascii number with bash builtin printf

Find the package that installed a command

Prepend text to a file

Take a screenshot every 2 seconds
Take a screenshot every 2 seconds and save it as a png file

print date 24 hours ago


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