Arsham Shirvani arsham

Senior Software Engineer. I'm a Gopher and I love GNU/Linux and Neovim.

arsham / reflext_go_test.sh

Created May 26, 2018 12:00

Run #golang tests with reflex and print a separator after each iteration.

reflex -d none -r "\.go$" -- zsh -c "time go test ./... ; repeat 100 printf '#'" 

arsham / iotop_refresh_rate.sh

Created May 2, 2018 22:22

Iotop with refresh rate and only active processes. #linux #sysadmin

iotop -aod 0.5

arsham / sysctl.conf

Created April 30, 2018 12:47

Sysctl configuration to reduce swap stress on #linux

	# put insize /etc/sysctl.d/99-sysctl.conf
	vm.swappiness=1
	vm.max_map_count=262144
	vm.vfs_cache_pressure=50

arsham / cpu_flags.sh

Created April 29, 2018 19:00

Identify CPU_FLAGS for the cpu

	git clone [email protected]:mgorny/cpuid2cpuflags.git
	cd cpuid2cpuflags
	autoreconf --install
	./configure
	make
	./cpuid2cpuflags

arsham / ccache_tips.md

Last active July 25, 2024 17:48

#ccache tips for better compilations performance. #linux

Ccache

Install ccache then update the PATH:

export PATH="/usr/lib/ccache:$PATH"

arsham / patch_guru_cgo.sh

Last active May 5, 2018 21:01

Patch guru to work with #golang cgo

	cd $GOPATH/src/golang.org/x/tools
	git remote add cgo [email protected]:FrankReh/tools.git
	git merge cgo/current
	cd cmd/guru
	find . -type f -print0 \| xargs -0 sed -i 's/guru "github\.com\/frankreh\/tools\/cmd\/guru"//g'
	find . -type f -print0 \| xargs -0 sed -i 's/import "github\.com\/frankreh\/tools\/cmd\/guru"//g'
	go install
	# back to original
	git reset origin/master --hard

arsham / qt_add_component.txt

Created April 26, 2018 16:02

Qt add/update components

	Run `MaintenanceTool` in Qt installation directory. Select settings and add:
	`http://download.qt.io/online/qt5/linux/x86/online_repository/`

arsham / replace_string_in_files.sh

Created April 25, 2018 20:38

Replace string in all files recursively

find . -type f -print0 | xargs -0 sed -i 's/MATCH/REPLACEMENT/g'

arsham / restart_plasma.sh

Created April 23, 2018 13:41

Restart Plasma shell and panel

kquitapp5 plasmashell && kstart plasmashell

arsham / grep_compressed_files.sh

Created April 21, 2018 21:19

Group in all compressed files

find -name \*.gz -print0 | xargs -0 zgrep "TEXT"