Latest revision as of 19:13, 15 January 2021

How To Something

NeXT Steps

 here everything has yet to be done !

coming soon :

Everything You Always Wanted to Know on git [seldom]... (But Were Afraid to Ask) a collection of links of interest

guides

Unix Shell

working with file and directories
- https://swcarpentry.github.io/shell-novice/03-create/index.html
Shell
- https://swcarpentry.github.io/shell-novice/06-script/index.html
how to find things
- https://swcarpentry.github.io/shell-novice/07-find/index.html

useful commands

cd

cp

df

ls

ls
ls -al
ls -alf

ln

mv

mkdir

rm

touch

Find

grep

awk

sed

cat

less

vi

vim

ssh

scp

How To

using grep

grep -rwl '/path/' -e "string"
grep -rwl '/path/' -e "string" | grep 'path_string'

combining find and command using exec

tous les dossiers appelés target

find -name target -type d

effacer tous les dossier nommé "target" executer un rm recursif, le dossier target est utilisé part maven entres autres

find -name target -type d -exec rm -r {} \;

chercher une chaine searched_string_in_file dans les fichers *.cxx

find . -type f -name "*.cxx" -exec grep "searched_string_in_file" {} \;

ajouter -print pour afficher le fichier conteneur

find . -type f -name "*.cxx" -exec grep "searched_string_in_file" {} \; -print

filtrer le chemin d'access et afficher le fichier

find /path -path '*path_string*' -type f -exec grep -qw 'string' {} \; -print

update all git subdirectories

find . -name .git -type d -exec git --git-dir '{}' fetch --all ';'
find . -type d -name .git -d 2 -exec git --git-dir '{}' fetch \; -print
find . -type d -name ".git" -exec git --git-dir '{}' pull \; -print
find . -type d -name ".git" -exec git --git-dir '{}' reset --hard origin/master \; -print

patch

patch command

with git

Activate core dumps and other systems limits

activate for all users

ulimit -a

then set for a user

ulimit -c unlimited

system config files

/etc/security/limits.conf

Ubuntu

Apport is managing core dump (16.04)

sudo systemctl enable apport.service 
sudo service apport start.

/etc/apport/crashdb.conf

cat /proc/sys/kernel/core_pattern
 |/usr/share/apport/apport %p %s %c %d %P %E

location:

/var/crash/

@@ Line 14: / Line 14: @@
 * [[Technoverse]]
 * [[git]]
+== guides ==
+=== Unix Shell ===
+* working with file and directories
+** https://swcarpentry.github.io/shell-novice/03-create/index.html
+* Shell
+** https://swcarpentry.github.io/shell-novice/06-script/index.html
+* how to find things
+** https://swcarpentry.github.io/shell-novice/07-find/index.html
 == useful commands ==
- cd
+=== cd ===
+=== cp ===
+=== df ===
+=== ls ===
   ls
   ls -al
   ls -alf
- mv
+=== ln ===
- cp
+=== mv ===
- rm
+=== mkdir ===
- mkdir
+=== rm ===
- touch
+=== touch ===
- ln
+=== Find ===
- grep
+=== grep ===
- awk
+=== awk ===
- sed
+=== sed ===
- cat
+=== cat ===
- less
+=== less ===
- vi
+=== vi  ===
- vim
+=== vim ===
- ssh
+=== ssh ===
- scp
+=== scp ===
 == How To ==
-=== find and grep ===
+== How To ==
+=== using grep ===
+ grep -rwl '/path/' -e "string"
+ grep -rwl '/path/' -e "string" | grep 'path_string'
+=== combining find and command using exec ===
+* tous les dossiers appelés target
+ find -name target -type d
+*  effacer tous les dossier nommé "target"  executer un rm recursif, le dossier target est utilisé part maven entres autres
+ find -name target -type d -exec rm -r {} \;
+* chercher une chaine searched_string_in_file dans les fichers *.cxx
   find . -type f -name "*.cxx" -exec grep "searched_string_in_file" {} \;
+* ajouter -print pour afficher le fichier conteneur
+ find . -type f -name "*.cxx" -exec grep "searched_string_in_file" {} \; -print
+* filtrer le chemin d'access  et afficher le fichier
+ find /path -path '*path_string*' -type f -exec grep -qw 'string' {} \; -print
+* update all git subdirectories
+ find . -name .git -type d -exec git --git-dir '{}' fetch --all ';'
+ find . -type d -name .git -d 2 -exec git --git-dir '{}' fetch \; -print
+ find . -type d -name ".git" -exec git --git-dir '{}' pull \; -print
+ find . -type d -name ".git" -exec git --git-dir '{}' reset --hard origin/master \; -print
+=== patch ===
+==== patch command ====
+* https://doc.ubuntu-fr.org/patch
+* https://wiki.debian-fr.xyz/Utiliser_diff_et_patch
+==== with git ====
+* https://www.devroom.io/2009/10/26/how-to-create-and-apply-a-patch-with-git/
+* https://geekeries.de-labrusse.fr/?p=3212
+* https://stackoverflow.com/questions/2249852/how-to-apply-a-patch-generated-with-git-format-patch
+=== Activate core dumps and other systems limits ===
+*https://www.akadia.com/services/ora_enable_core.html
+*https://linux-audit.com/understand-and-configure-core-dumps-work-on-linux/
+*https://linuxhint.com/linux_ulimit_command/
+*https://superuser.com/questions/1200539/cannot-increase-open-file-limit-past-4096-ubuntu
+* activate for all users
+ ulimit -a
+* then set for a user
+ ulimit -c unlimited
+* system config files
+ /etc/security/limits.conf
+* Ubuntu
+Apport is managing core dump (16.04)
+ sudo systemctl enable apport.service
+ sudo service apport start.
+ /etc/apport/crashdb.conf
+ cat /proc/sys/kernel/core_pattern
+  |/usr/share/apport/apport %p %s %c %d %P %E
+location:
+ /var/crash/

Difference between revisions of "HowToLinuxCommands"

Latest revision as of 19:13, 15 January 2021

Contents

How To Something

See also

guides

Unix Shell

useful commands

cd

cp

df

ls

ln

mv

mkdir

rm

touch

Find

grep

awk

sed

cat

less

vi

vim

ssh

scp

How To

How To

using grep

combining find and command using exec

patch

patch command

with git

Activate core dumps and other systems limits

Navigation menu

Search