Commands tagged Gentoo sorted by votes

Commands tagged Gentoo (21)

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Resume an emerge, and keep all object files that are already built

For Gentoo: If you do not use this command, portage will fetch the source again, and rebuild the hole application from the top. This command make portage keep all files that ar allready built
This is sample output - yours may be different.
4

FEATURES=keepwork emerge --resume

jonjonarnearne · 2009-07-04 21:09:27 6
Re-emerge all ebuilds with missing files (Gentoo Linux)

Revised approach to and3k's version, using pipes and read rather than command substitution. This does not require fiddling with IFS when paths have whitespace, and does not risk hitting command-line size limits. It's less verbose on the missing files, but it stops iterating at the first file that's missing, so it should be definitely faster. I expanded all the qlist options to be more self-describing.
This is sample output - yours may be different.
3

emerge -av1 `qlist --installed --nocolor | uniq | while read cp; do qlist --exact $cp | while read file; do test -e $file || { echo $cp; echo "$cp: missing $file (and maybe more)" 1>&2; break; }; done; done`

Flameeyes · 2010-07-04 19:55:42 8
enable all bash completions in gentoo

enable each bash completion that you have installed at your system, that's very nice ;)
This is sample output - yours may be different.
3

for x in $(eselect bashcomp list | sed -e 's/ //g' | cut -d']' -f2 | sed -e 's/\*//');do eselect bashcomp enable $x --global;sleep 0.5s;done

chronos · 2010-09-21 00:17:26 6
Check (partial) runtime-dependencies of Gentoo ebuilds

The output is only partial because runtime dependencies should count in also commands executed via system() and libraries loaded with dlopen(), but at least it gives an idea of what a package directly links to. Note: this is meaningful *only* if you're using -Wl,--as-needed in your LDFLAGS, otherwise it'll bring you a bunch of false positives. Show Sample Output
This is sample output - yours may be different.
```
# checkrdeps radvd
sys-libs/glibc (/lib64/libc.so.6)
sys-libs/glibc (/lib32/libc.so.6)
```
2

qlist --exact "$pkg" | sudo scanelf --needed --quiet --format '%n#F' | tr ',' '\n' | sort -u | qfile --from -

Flameeyes · 2010-07-06 14:39:15 97
For Gentoo users : helping with USE / emerge

This command puts all the flags of the USE variable actually used by the packages you emerged to the file "use", and those which are unused but available to the file "notuse"
This is sample output - yours may be different.
1

emerge -epv world | grep USE | cut -d '"' -f 2 | sed 's/ /\n/g' | sed '/[(,)]/d' | sed s/'*'//g | sort | uniq > use && grep ^- use | sed s/^-// | sed ':a;N;$!ba;s/\n/ /g' > notuse && sed -i /^-/d use && sed -i ':a;N;$!ba;s/\n/ /g' use

Keruspe · 2009-04-19 07:54:08 4
Gentoo: Get the size of all installed packets, sorted

On a Gentoo system, this command will tell you which packets you have installed and sort them by how much space they consume. Good for finding out space-hogs when tidying up disk space. Show Sample Output
This is sample output - yours may be different.
```
alanceil@kvirasim:03:06:2:0:~> equery s | sed 's/(\|)/ /g' | sort -n -k 9 | gawk '{print $1" "$9/1048576"m"}'
app-text/scrollkeeper-9999-r1: 0m
gnome-base/gail-1000: 0m
--- *snip* ---
dev-java/sun-jdk-1.6.0.13: 158.84m
games-puzzle/neverball-1.5.0: 174.607m
app-office/openoffice-bin-3.0.0: 380.035m
```
1

equery s | sed 's/(\|)/ /g' | sort -n -k 9 | gawk '{print $1" "$9/1048576"m"}'

Alanceil · 2009-07-30 01:12:10 6
Shows how many percents of all avaliable packages are installed in your gentoo system

Show Sample Output
This is sample output - yours may be different.
```
10%
```
1

echo $((`eix --only-names -I | wc -l` * 100 / `eix --only-names | wc -l`))%

leavittx · 2009-08-02 22:01:27 6
identify exported sonames in a path

This provides a list of shared object names (sonames) that are exported by a given tree. This is usually useful to make sure that a given required dependency (NEEDED entry) is present in a firmware image tree. The shorter (usable) version for it would be scanelf -RBSq -F "+S#f" But I used the verbose parameters in the command above, for explanation. Show Sample Output
This is sample output - yours may be different.
```
# scanelf -RBSq -F "+S#f" /lib64    
libext2fs.so.2
libresolv.so.2
libcrypt.so.1
libutil.so.1
libpcprofile.so
libbz2.so.1
libnss_nisplus.so.2
libblkid.so.1
...
```
1

scanelf --nobanner --recursive --quiet --soname --format "+S#f"

Flameeyes · 2012-03-29 18:26:25 3
identify NEEDED sonames in a path

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 Show Sample Output
This is sample output - yours may be different.
```
# scanelf -RBnq -F "+n#f" /bin | tr ',' '\n' | sort -u
libacl.so.1
libattr.so.1
libblkid.so.1
libbz2.so.1
libc.so.6
libcrypt.so.1
libcrypto.so.1.0.0
libdl.so.2
libm.so.6
libmount.so.1
libncurses.so.5
libprocps.so.0
libpthread.so.0
libreadline.so.6
libresolv.so.2
librt.so.1
```
1

scanelf --nobanner --recursive --quiet --needed --format "+n#F" $1 | tr ',' '\n' | sort -u

Flameeyes · 2012-03-29 18:30:45 4
enable all bash completions in gentoo
This is sample output - yours may be different.
1

for i in `eselect bashcomp list | awk '{print $2}'`; do eselect bashcomp enable $i; done

jsvk · 2012-12-10 06:07:54 5
Re-emerge all ebuilds with missing files (Gentoo Linux)
This is sample output - yours may be different.
1

emerge -a `qcheck -aCB`

R0b0t1 · 2014-07-28 22:23:59 5
Find installed packages that are not in the portage tree anymore.

Problem arises when ebuild gets removed from portage and you end up with old and unmaintained package that you cannot find standard way. This oneliner will give you list of those packages. Show Sample Output
This is sample output - yours may be different.
```
stat: cannot stat `/usr/portage/virtual/ghostscript': No such file or directory
stat: cannot stat `/usr/portage/virtual/mpg123': No such file or directory
stat: cannot stat `/usr/portage/virtual/poppler': No such file or directory
```
0

for f in $(qlist -IC); do stat /usr/portage/"$f" > /dev/null; done

homoludens · 2010-08-09 11:29:55 6
Extract herds & maintainers' email from a Gentoo metadata.xml file

The command requires app-text/xmlstarlet but it otherwise self-contained. It extracts all the herds and all the maintainers' email for a given package and is what I'm using on the Tinderbox to make it easier for me to report bugs. Show Sample Output
This is sample output - yours may be different.
```
$ xmlstarlet sel -t -m '/pkgmetadata/herd' -v . -n -t -m '/pkgmetadata/maintainer' -v email /usr/portage/app-crypt/ekeyd/metadata.xml
no-herd
flameeyes@gentoo.org
```
0

xmlstarlet sel -t -m '/pkgmetadata/herd' -v . -n -t -m '/pkgmetadata/maintainer' -v email metadata.xml

Flameeyes · 2010-08-09 22:37:19 4
Shows how many percents of all avaliable packages are installed in your gentoo system

Use bc for decimals...
This is sample output - yours may be different.
0

echo $(echo 'scale=2; ' '100 * ' $(eix --only-names -I | wc -l) / $(eix --only-names | wc -l) | bc -l)%

MeaCulpa · 2010-10-25 15:42:15 4
Check for orphaned python files
This is sample output - yours may be different.
0

find /usr/lib/python* -regextype posix-extended ! $ -type f -regex '.*.(pyc|pyo)' -prune -o -print $ | qfile -o -f -

toffanin · 2011-04-10 07:11:42 4
enable all bash completions in gentoo
This is sample output - yours may be different.
0

eselect bashcomp enable --global $(eselect bashcomp list | sed -e 's/ //g'| cut -d']' -f2 | sed -e 's/\*//'| xargs)

proteusx · 2012-07-20 22:01:08 5
Build a Stage 4 cross compiler for x86_64-elf with Gentoo's crossdev

You may have to disable fortran and openmp using the USE variable too. YMMV.
This is sample output - yours may be different.
0

EXTRA_ECONF="--disable-libquadmath --enable-languages=c" crossdev --target x86_64-elf -s4

samcamwilliams · 2013-11-25 14:54:45 7
enable all bash completions in gentoo

Pros: * it's much faster then for loop * removes first line of 'eselect bashcomp list' - which contains text "Available completions:"
This is sample output - yours may be different.
0

eselect bashcomp enable --global $(eselect bashcomp list | tail -n +2 | awk '{print $2}' |xargs)

eNcacz · 2016-02-12 16:53:22 12
Compute newest kernel version from Makefile on Torvalds' git repository

Get newest kernel version by parsing the most bleeding-edge Makefile possible. Useful for doing things like writing live ebuilds and/or self-updating PKGBUILDs for testing purposes. Breakdown: * wget -qO - https://raw.githubusercontent.com/torvalds/linux/master/Makefile — retrieve Makefile and pipe to stdout * head -n5 — only the first 5 lines are relevant, that's where all the version variables are grep -E '\ \=\ [0-9]{1,}' — version variables always have an equals sign followed by a number * cut -d' ' -f3 — extract the individual numbers from the version variables * tr '\n' '.' — replace newlines with periods * sed -e "s/\.$// — remove trailing period Show Sample Output
This is sample output - yours may be different.
```
5.12.0
```
0

wget -qO - https://raw.githubusercontent.com/torvalds/linux/master/Makefile | head -n5 | grep -E '\ \=\ [0-9]{1,}' | cut -d' ' -f3 | tr '\n' '.' | sed -e "s/\.$//"

realkstrawn93 · 2021-04-27 17:12:05 498
[Gentoo] Input modules, commented, in your module.autoload file

Whenever you compile a new kernel, there are always new modules. The best way to make sure you have the correct modules loaded when you boot is to add all your modules in the modules.autoload file (they will be commented) and uncomment all those modules you need. Also a good way to keep track of the available modules in your system. For other distros you may have to change the name of the file to /etc/modprobe.conf Show Sample Output
This is sample output - yours may be different.
```
# /etc/modules.autoload.d/kernel-2.6:  kernel modules to load when system boots.
#
# Note that this file is for 2.6 kernels.
#
# Add the names of modules that you'd like to load when the system
# starts into this file, one per line.  Comments begin with # and
# are ignored.  Read man modules.autoload for additional details.

# For example:
# aic7xxx
# mixer-oss.ko
# pcm-oss.ko
# seq-device.ko
# seq-oss.ko
# snd-seq.ko
```
-1

find /lib/modules/`uname -r`/ -type f -iname '*.o' -or -iname '*.ko' |grep -i -o '[a-z0-9]*[-|_]*[0-9a-z]*\.ko$' |xargs -I {} echo '# {}' >>/etc/modules.autoload.d/kernel-2.6

paragao · 2010-01-13 02:12:08 5
Compute newest kernel version from Makefile on Torvalds' git repository

The platform-agnostic version of https://www.commandlinefu.com/commands/view/25276/compute-newest-kernel-version-from-makefile-on-torvalds-git-repository because macOS doesn't have wget installed
This is sample output - yours may be different.
-1

curl -s -o - https://raw.githubusercontent.com/torvalds/linux/master/Makefile | head -n5 | grep -E '\ \=\ [0-9]{1,}' | cut -d' ' -f3 | tr '\n' '.' | sed -e "s/\.$//"

realkstrawn93 · 2023-08-10 22:25:55 230

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dd with progress bar and remaining time displayed

Install pip with Proxy

Installs pip packages defining a proxy

Rename duplicates from MusicBrainz Picard

Renames duplicates from MusicBrainz Picard, so you get the latest copy and not a bunch of duplicates.

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"

Rename files in batch

See how many more processes are allowed, awesome!

There is a limit to how many processes you can run at the same time for each user, especially with web hosts. If the maximum # of processes for your user is 200, then the following sets OPTIMUM_P to 100. $ OPTIMUM_P=$(( (`ulimit -u` - `find /proc -maxdepth 1 $ -user $USER -o -group $GROUPNAME $ -type d|wc -l`) / 2 )) This is very useful in scripts because this is such a fast low-resource-intensive (compared to ps, who, lsof, etc) way to determine how many processes are currently running for whichever user. The number of currently running processes is subtracted from the high limit setup for the account (see limits.conf, pam, initscript). An easy to understand example- this searches the current directory for shell scripts, and runs up to 100 'file' commands at the same time, greatly speeding up the command. $ find . -type f | xargs -P $OPTIMUM_P -iFNAME file FNAME | sed -n '/shell script text/p' I am using it in my http://www.askapache.com/linux-unix/bash_profile-functions-advanced-shell.html especially for the xargs command. Xargs has a -P option that lets you specify how many processes to run at the same time. For instance if you have 1000 urls in a text file and wanted to download all of them fast with curl, you could download 100 at a time (check ps output on a separate [pt]ty for proof) like this: $ cat url-list.txt | xargs -I '{}' -P $OPTIMUM_P curl -O '{}' I like to do things as fast as possible on my servers. I have several types of servers and hosting environments, some with very restrictive jail shells with 20processes limit, some with 200, some with 8000, so for the jailed shells my xargs -P10 would kill my shell or dump core. Using the above I can set the -P value dynamically, so xargs always works, like this. $ cat url-list.txt | xargs -I '{}' -P $OPTIMUM_P curl -O '{}' If you were building a process-killer (very common for cheap hosting) this would also be handy. Note that if you are only allowed 20 or so processes, you should just use -P1 with xargs.

Transfer large files/directories with no overhead over the network

This invokes tar on the remote machine and pipes the resulting tarfile over the network using ssh and is saved on the local machine. This is useful for making a one-off backup of a directory tree with zero storage overhead on the source. Variations on this include using compression on the source by using 'tar cfvp' or compression at the destination via $ ssh user@host "cd dir; tar cfp - *" | gzip - > file.tar.gz

rsync...

make 100 directories with leading zero, 001...100, using bash3.X

Look for English words in /dev/urandom

Little faster alternative.

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Commands tagged Gentoo (21)

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