Linux/BASH
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Resume failed scp
If you've run an SCP thats cancelled and want to resume, where the scp command was..
$ scp -r some_dir user@host:/target/path
replace the scp -r with rsync --partial --progress --rsh=ssh to make the resume command:
rsync -r --partial --progress --rsh=ssh some_dir user@host:/target/path
Find & grep
To find all files called "something.txt" containing the text "find me" run:
find . -name "something.txt" -exec grep "find me" {} /dev/null \;
Port scanner script
#!/usr/bin/python
import socket
import sys
if ( len(sys.argv) != 2 ):
print "Usage: " + sys.argv[0] + " you must enter IP or FQDN as argument"
sys.exit(1)
remote_host = sys.argv[1]
for remote_port in [21,22,23,80,139,139,389,443,445,3128,3306,3389]:
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.settimeout(20)
try:
sock.connect((remote_host, remote_port))
except Exception,e:
print "%d closed " % remote_port
else:
print "%d open" % remote_port
sock.close()
Tab Complete
To ignore certain files/directories when tab completing (in the example "CVS" and ".svn", open "~/.bashrc"..
export FIGNORE=CVS:.svn
Trap Ctrl-C
Example loops forever until ctrl-c is pressed
#! /bin/sh
exit_loop() {
echo "death!"
exit
}
trap exit_loop INT
while [ 1 == 1 ]
do
echo "."
done
