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Lists directory size up to a maximum traversal depth on systems like IBM AIX, where the du command doesn't have Linux's --max-depth option. AIX's du uses -g to display directory size on gigabytes, -m to use megabytes, and -k to use kilobytes.
This command is used to verify a sha256sum-formatted file hash list on IBM AIX or any other UNIX-like OS that has openssl but doesn't have sha256sum by default. Steps:
1: Save to the filesystem a script that:
A: Receives as arguments the two parts of one line of a sha256sum listing
B: Feeds a file into openssl on SHA256 standard input hash calculation mode, and saves the result
C: Compares the calculated hash against the one received as argument
D: Outputs the result in a sha256sum-like format
2: Make the script runnable
3: Feed the sha256sum listing to xargs, running the aforementioned script and passing 2 arguments at a time
This command is for UNIX OSes that have plain vanilla System V UNIX commands instead of their more functional GNU counterparts, such as IBM AIX.
This command is for producing GNU sha256sum-compatible hashes on UNIX systems that don't have sha256sum but do have OpenSSL, such as stock IBM AIX.
1.- Saves a wrapper script for UNIX find that does the following:
A.- Feeds a file to openssl on SHA256 hash calculation mode
B.- Echoes the output followed by the filename
2.- Makes the file executable
3.- Runs find on a directory, only processing files, and running on each one the wrapper script that calculates SHA256 hashes
Pending is figuring out how to verify a sha256sum file on a similar environment.
use this command to gzip the file and write to stdout and from the stdout redirect to the another file
Not figured by me, but a colleague of mine.
See the total amount of data on an AIX machine.
See who is using a specific port. Especially when you're using AIX. In Ubuntu, for example, this can easily be seen with the netstat command.
Specify the size in bytes using the 'c' option for the -size flag. The + sign reads as "bigger than". Then execute du on the list; sort in reverse mode and show the first 10 occurrences.
This command is AIX compatible.
It will prompt the user for a new password at next logon
you must be in the directory to analyse
report all files and links in the currect directory, not recursively.
this find command ahs been tested on hp-ux/linux/aix/solaris.