А знаете ли вы, что в Bash есть особая переменная "$_" ? Из описания можно узнать, что в переменную "$_" помещается последний аргумент последней команды.
Что-то знакомое? Конечно, в Python есть примерно тоже самое.
Мы знаем, что дата первого релиза Bash (8 июня 1989) несколько раньше чем первый релиз Python (20 февраля 1991). Если учесть, что по задумке автора Python это агрегация самых успешных практик отовсюду, можно ли сказать что именно эта фишка к нему пришла из Bash? Ни подтверждения ни опровержения я пока не нашел.
Давайте просто считать это совпадением 😉
А как это может быть полезно в Bash?
Приведу простой пример, который оценят те, кто часто работает в терминале.
Допустим, нам надо создать директорию и зайти в неё. Что обычно делаем?
:~$ mkdir foldername
:~$ cd foldername
:~/foldername$
Как это сделать в одну команду?
:~$ mkdir foldername && cd foldername
:~/foldername$
Уже лучше, но хочется короче, без повторов. Вот тут и пригодится наша переменная. Напомню, что в неё сохраняется последний аргумент предыдущей команды.
:~$ mkdir foldername && cd $_
:~/foldername$
_________________
PS.
Символы "&&"" разделяют команды и означают, что требуется выполнить вторую команду только если первая завершилась успешно.
#linux#tricks
#InfinityX#qpr2#Diting#A15
Project InfinityX - v2.8 | Android 15
Released: 8/05/2025
▪️Gapps: Gdrive
▪️Vanilla: Gdrive
▪️Recovery: Ofox
▪️Screenshots
Notes:
It is recommended to use ofox recovery if you are flashing via fastboot.
fastboot flash recovery_ab recovery.img
Changelogs:
• Synchronized with the latest changes
• Device integrity passes (signed build)
• fixed the problem with freezing when the battery reaches 5%?
• KernelSU Support
• Firmware included
• Dolby Audio by default
• HyperOS Camera by default
Credits:
Thanks to @TeamMEX_XDA❤️
Thanks to @zED141 for giving me space on gdrive
By@Jezzay97 | Donate
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#InfinityX#qpr2#Diting#A15
Project InfinityX - v2.7 HotFix | Android 15
Released: 3/05/2025
▪️Gapps: Mirror | Gdrive
▪️Vanilla: Mirror | Gdrive
▪️Recovery: Ofox
▪️Screenshots
Notes:
It is recommended to use ofox recovery if you are flashing via fastboot.
fastboot flash recovery_ab recovery.img
Changelogs:
• Synchronized with the latest changes
• Device integrity passes (signed build)
• Fixed the error when installing gapps due to missing partition.
• Slot 2 problem for Sim cards solved
• Firmware included
• Dolby Audio by default
• HyperOS Camera by default
• and many more changes...
Credits:
Thanks to @TeamMEX_XDA❤️
Thanks to @zED141 for giving me space on gdrive
By@Jezzay97 | Donate
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#InfinityX#qpr2#Diting#A15
Project Infinity X - v2.7 | Android 15
Released: 3/05/2025
▪️Gapps: Mirror | SF
▪️Vanilla: Mirror | SF
▪️Screenshots
Notes:
• Synchronized with the latest changes
• Device integrity passes (signed build)
• Thermal menu was removed for now
• Remove some ARM blobs
• Now with oss kernel
• Fixed some vibration bugs. now works 100%.
• Added KernelSU support
• Improved performance
• Firmware included
• Dolby Audio by default
• HyperOS Camera by default
• and many more changes...
Credits:
Thanks to @TeamMEX_XDA❤️
By@Jezzay97 | Donate
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#InfinityX#qpr2#Diting#A15
Project Infinity X - v2.7 | Android 15
Released: 20/04/2025
▪️Download: Mirror | SF
▪️Screenshots
Notes:
• Synchronized with the latest changes
• Device integrity passes (signed build)
• Workaround for voip audio routing issue using a monitoring service (Whatsapp calls on speakerphone fixed)
• Firmware included and updated
• Gapps build only
• Dolby Audio by default
• HyperOS Camera by default
By@Jezzay97 | Donate
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#EvolutionX#UNOFFICIAL#A15#QPR2#diting
EvolutionX 10.6 | UNOFFICIAL | Android 15
Updated: 27/5/2025
▪️Download: Gdrive
▪️Screenshots
Changelogs:
• The device tree has been completely reworked
• The kernel has also been re-based
• Some new features have been implemented
• Charging with the phone turned off has been solved.
• Xiaomi camera has been updated
• The double tap to wake up has been fixed
• Fingerprint sensor glows when AOD appears has been fixed
• If you want the screen to stay at 120hz, activate it on the screen as minimum frequency.
• LDAC and LHDC support for Bluetooth has been added
• New integrated dolby audio
• KSU Support
• to pass integrity, use your own methods to pass integrity, use your own methods.
• Some more changes have been made and optimized
• More changes coming soon
Credits:
@TeamMEX_XDA
@ArianK16a
@Omar99A
By@Jezzay97 | Donate
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#EvolutionX#UNOFFICIAL#A15#QPR2#diting
EvolutionX 10.6 | UNOFFICIAL | Android 15
Updated: 18/5/2025
▪️Download: Gdrive
▪️Screenshots
Changelogs:
• May 2025 security patches have been merged into our Android 15 QPR2 branch. The latest version is now 10.6.
• voip fixed problem with calls and voice notes whatsapp telegram
• Optimize native executables for Cortex-A76 CPU Cortex-A510
• Optimize dex2oat for cortex-a76 on cortex-a510
• Migrate powershare to soong_config_set
• Set camera override format from reserved via soong config
• Migrate Lineage Health to soong_config_set
• gps: Avoid access of deprecated LocUnorderedSetMap entry
• Migrate sensor-notifier extension config to soong select
• wlan: Drop unused vendor_cmd.xml
• sepolicy: add missing sysfs wakeup nodes
• sepolicy: Allow CAP_SYS_NICE to zygote
• More changes: Here
• KSU Support
• Dolby Audio incluide
• Hyperos Camera incluide
Credits:
Thanks to @TeamMEX_XDA
By@Jezzay97 | Donate
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#EvolutionX#UNOFFICIAL#A15#QPR2#diting
EvolutionX 10.5 | UNOFFICIAL | Android 15
Updated: 12/4/2025
▪️Download: SF | Mirror
▪️Screenshots
Changelogs:
• April 2025 security patches have been merged into Evolution X. Latest version is now 10.5.
• Dolby Audio Included
• Hyperos Camera Included
Credits:
Thanks to @TeamMEX_XDA
By@Jezzay97 | Donate
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#EvolutionX#UNOFFICIAL#A15#QPR2#diting
EvolutionX 10.4 | UNOFFICIAL | Android 15
Updated: 9/4/2025
▪️Download: here
▪️Screenshots
Changelogs:
• some bugs fixed
• interfaces: Add prebuilt hidl interfaces declarations
• pixel launcher problems fixed
• the fingerprint icon has been fixed
• Introduce XiaomiEuicc in hardware/xiaomi
• and many more changes that I am too lazy to add to the list XD
• Dolby Audio incluide
• Hyperos Camera incluide
Credits:
Thanks to @TeamMEX_XDA
By@Jezzay97 | Donate
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