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M is size in megabytes, man expac to see other sizes
%m is install size
%k is download size
This will list all installed packages on a RedHat/CentOS based system, sort them alphabetically, Parse off the version numbers, and delete any duplicate entries.
This is good if you need to build out a mirrored system or rebuild a failing system.
Uses line-porcelain in git blame, which makes it easier to parse the output.
Watch out if you have several USB drives plugged in: it scans the whole /media/ folder !!! You can replace /media/ by the path of a specific USB drive (something like /media/F77A-530B/)
I use a sound recorder and I want to plug the recorder and grab the most recent sound.
That's what this command does.
Use mv instead of cp to move instead of copy.
Change *.wav to the required file type.
Shows sorted by query time, the headers of mysqlbinlog entries. Then is easy to locate the heavier events on the raw log dump
Sometimes you want to see all of the systcls for a given $thing. I happened to need to easily look at all of the vm sysctls between two boxes and compare them. This is what I came up with.
See the summary.
This doesn't require any non-standard programs.
for those without the tree command.
Per country GET report, based on access log. Easy to transform to unique IP
tree -ifsF --noreport .|sort -n -k2|grep -v '/$'
(rows presenting directory names become hidden)
couldn't stand previous unsortability of at jobs list
The listing will be nice separated with dashes in chunks of identical files.
Size Inode Mode Count_of_identical_files UID GID Date Time Path/Filename
Simpler and without all of the coloring gimmicks. This just returns a list of branches with the most recent first. This should be useful for cleaning your remotes.
find -printf "%f\n" prints just the file name from the given path. This means directory paths which contain extensions will not be considered.
Search for files and list the 20 largest.
find . -type f
gives us a list of file, recursively, starting from here (.)
-print0 | xargs -0 du -h
separate the names of files with NULL characters, so we're not confused by spaces
then xargs run the du command to find their size (in human-readable form -- 64M not 64123456)
| sort -hr
use sort to arrange the list in size order. sort -h knows that 1M is bigger than 9K
| head -20
finally only select the top twenty out of the list
from my bashrc ;)
This works in combination with http://www.commandlinefu.com/commands/view/10496/identify-exported-sonames-in-a-path as it reports the NEEDED entries present in the files within a given path. You can then compare it with the libraries that are exported to make sure that, when cross-building a firmware image, you're not bringing in dependencies from the build host.
The short version of it as can be seen in the same output is
scanelf -RBnq -F "+n#f" $1 | tr ',' '\n' | sort -u
Works on most unixes, on OpenBSD replace the "-g" parameter at the sort with a "-n".