I have several shell scripts (bash) which are started by cron. Every time a script is executed I get an email saying “stdin: is not a tty”. Can someone please tell me how to fix this? All scripts run successfully but these mails are killing my email folder.
I’m using ssh as a SOCKS5 proxy, connecting to my personal server. When my system is suspended or I lose internet connection, the ssh will eventually time out, forcing me to manually reconnect. How can I configure my system to automatically reconnect as soon as an internet connection is established?
How to mount ext3, ext4 partition sitting on “Fixed-Size VDI” VirtualBox HardDisk ?
I’m trying to merge two directory trees that have many common elements but also each have elements that are only present in one of the two trees. The main issue I am having is that when mv encounters two sub-directories with the same relative paths it either keeps the source (with -f) or the destination (with -n) but I can’t make it take the union of both sub-directories. I could of course use rsync with --remove-source-files but this will actually copy the data and then delete the old files as opposed to a true move. The two directory trees contain several hundred GB of data and are both on same partition so I would love to do a true move if possible for the sake of time.
In windows music files have metadata like artist name, album name associated with them. How is this metadata stored. Is it stored in file system like other file attributes or is it part of MP3 data that Windows Explorer extracts using a MP3 reader plugin?
Is the behavior of .* to include . and .. defined in LSB or POSIX or some other specification?
Is there a way to store my password in /etc/wpa_supplicant/wpa_supplicant.conf as some hash instead of plaintext?
I’m messing around with the security of a setuid binary (with the intention of disclosing anything I find to the author, obviously). I’m pretty sure it has an arbitrary code execution vulnerability because it invokes a shell script and it doesn’t sanitize the environment – I thought of bash’s export -f but I can’t actually make a proof of concept work.
I am trying to remove comments from a file which may be in any part of a line and span multiple lines. struct my_struct{ field1; field2; /** comment 1 */ field3; /* comment 2 */ } struct_name; I need to get struct my_struct{ field1; field2; field3; } struct_name; I tried using grep -o '[^/*]*[^*/]' to … Read more
*/30 */30 * * * python /root/get_top.py I’m trying to run a script every 30 hours and 30 minutes. Is the syntax above proper for that? I’ve had multiple people tell me that */30 is not a valid value for the hour column, since it’s greater than 24. If that’s true, how do I make … Read more