BASH/C2/Conditional-execution/Khasi

Time	Narration
00:01	Paralok baieid, ngi pdiangsngewbha ia phi sha ka spoken tutorial halor ka Conditional execution ha Bash.
00:08	Ha kane ka jinghikai, ngin pule shaphang:
00:10	Ka jingdongkam jong ka test command bad
00:13	Conditional statements.
00:15	Ngin leh ia kane da kaba pyndonkam katto katne tylli ki nuksa.
00:19	Ban bud ia kane ka jinghikai
00:21	phi dei ban nang bad tip ia ka Linux Operating System.
00:26	na ka bynta ka jinghikai ba iadei bad kane, sngewbha leit sha ka website jong ngi kumba la pyni
00:32	Na ka bynta kane ka jinghikai, nga pyndonkam:
00:35	Ubuntu Linux 12.04 OS bad
00:39	GNU Bash version 4.1.10
00:43	ka GNU Bash version 4 lane kiba kham shajrong la ai jingmut na ka bynta ka jinghikai
00:49	To ngin sdang da ka lamphrang jong ka test.
00:52	test kadei ka built-in command kaba pynphai ia ka exit status.
00:57	Ka pynphai 0 (zero) na ka bynta True bad 1 (one)na ka bynta False.
01:02	Return value ka shong ha ka jingkhein lane evaluation jong ka expression.
01:07	Lah ban ioh ia ka return status da kaba type Dollar bad question mark sign ($?).
01:14	Ka expression lah ban evaluate ha ki ar rukom
01:18	Kawei kadei- da kaba pyndonkam ia ka keyword test.
01:21	Bad sa kawei pat kadei da kaba pyndonkam ia ka expression ba lah buh hapdeng ki square brackets.
01:27	Mynta, plié ia ka terminal da kaba nion Ctrl+Alt bad T keys ha ka juh kapor.
01:35	Type: test space 4 space hyphen eq space 4 semicolon space echo space dollar sign bad u question mark.Nion Enter.
01:53	Ka pynphai zero kaba mut True.
01:57	4 u ia ryngkat bad 4.
02:00	Nangta , type:
02:02	opening square bracket space 4 space hyphen eq space 4 space closing square bracket semicolon space echo space dollar sign bad u question mark.Nion Enter.
02:22	Ka pynphai zero kaba mut True.
02:25	Kata ka mut 4 u ia ryngkat bad 4.
02:28	To ngin shim sa kawei pat ka expression. Type: test space 4 space hyphen eq space 5 semicolon space echo space dollar sign question mark. Nion Enter.
02:48	Ka pynphai one kaba mut False.
02:52	Kata kamut 4 kam ia ryngkat bad 5.
02:56	Mynta to ngin thoh ia kajuh ka expression hapoh ki square brackets. Type:
03:01	opening square bracket space 4 space hyphen eq space 5 space closing square bracket semicolon space echo space dollar sign bad u question mark. Nion Enter.
03:21	Ka ruh ka pynphai one kaba mut False.
03:25	Kata ka mut 4 kam ia ryngkat bad 5.
03:29	Kane lah ban pynjrong na ka bynta kawei pat ka test.
03:33	Sngewbha type: man space test bad it ia ka jingdonkam jong ka.
03:40	Mynta, to ngin phai biang sha ki slides jong ngi.
03:43	Mynta ngin ia peit ia ka syntax na ka bynta ka if statement-
03:48	if space opening square bracket space expression space closing square bracket semicolon space then
03:59	Ha ka lain kaba bud , type : commands lane statements kaba phi kwah ban execute.
04:05	Khatduh eh, pynkut ia ka if loop da fi.
04:11	Ki ain ba donkam jong ka condition kidei:
04:14	Barabor buh space hapdeng ki brackets bad ka expression.
04:19	Barabor pynkut ia ka lain da kaba pyndonkam semicolon shwa ka keyword “then”.
04:25	Semicolon la ju pyndonkam ban pynkut ia ka statement lane ka expression.
04:31	Ka long kaba donkam ban quote ia ki string variables lada ngi pyndonkam ia ki ha ka condition.
04:38	Wat klet ban Khang ia ka conditional block da “fi”.
04:43	To ngin peit kawei ka nuksa halor ka if statement.
04:46	Phai biang sha ka terminal jong ngi.
04:49	Ngan plié ia ka script file ba la don lypa kaba kyrteng simpleif.sh.
04:58	Kane ka Bash script ka pyni ia ka khubor “count is 100” haba ka count ka ia ryngkat bad 100.
05:06	Kane ka dei ka lain banyngkong jong ka Bash shell script ba la tip kum ka shebang line.
05:12	U integer 100 la assigned sha u variable count.
05:17	Kynmaw ba ym dei ban don kano kano ka space hapdeng count, = bad 100.
05:24	Kane ka expression ka check lada ka count ka iaryngkat bad hundred.
05:30	Hangne, -eq udei u comparison operator.
05:35	Lada ka condition kadei True, kan pyni ia ka khubor count is 100.
05:41	fi kadei ban pynkut ia ka if block.
05:45	Mynta save ia ka file da kaba nion Ctrl + S.
05:49	Phai biang sha ka Terminal.
05:51	Ban pynlong ia ka file executable ,type: chmod space plus x space simpleif.sh bad nion Enter.
06:04	To ngan clear ia ka prompt.
06:06	Mynta type: dot slash simpleif.sh nion Enter.
06:14	Hangne ka la pyni
06:16	Count is 100.
06:18	Pyrshang ban pynkylla ia u value jong u variable count bad execute ia ka script.
06:24	Mynta phai biang sha ki slides jong ngi.
06:26	Ngin iapeit ia ka if-else condition.
06:30	Ka general syntax kadei: if space opening square bracket space condition space closing square bracket space semicolon space then
06:44	Ha ka lain kaba bud, type commands.
06:47	Ha ka lain kaba bud, don ka else statement.
06:51	Bad sa shisien type sa kiwei ki commands
06:55	Ha ka lain kaba bud, type fi ban pynkut ia ka if block.
07:00	To ngin pule ia ka jingdonkam jong ka if-else bad ka password program kaba sngewtynad
07:06	Phai biang sha ka terminal.
07:09	Ngan plié ia ka file ifelse.sh.
07:14	Kane kadei ka shebang line.
07:17	Hangne, abc123 la buh ha u variable PASS.
07:23	Namar ba abc123 udei u string, dei ban thoh ia u hapoh ki double-quotes.
07:29	Ka read command ka pule ia kawei ka lain jong ka data na ka standard input.
07:35	Ha kane ka bynta, standard input kadei ka keyboard jong ngi.
07:39	Hyphen s kadei na ka bynta ka silent mode
07:43	Kamut ba ka password ba la pyndap kan ym pyni kumba ngi type.
07:48	Ngim kwah ba kiwei kin iohi ia ka password jong ngi.
07:52	Hyphen p kadei na ka bynta prompt.
07:55	Kan sa pyni ia u string “'Enter password: ” shwa ban shim input na u user.
08:01	mypassword udei u variable.
08:04	U buh ia u string, ha kane ka bynta, ka password ba la pyndap da u user.
08:10	Kane ka check ba ka password ba la pyndap ka iahap ne em bad u value jong u variable PASS.
08:17	La buh ia u ha u variable mypassword.
08:21	Lada ka password ka iahap, kan pyni ia ka khubor:
08:25	“Password accepted”
08:27	Lym kumta, kan pyni “Access denied”.
08:31	fi kadei kaba kut jong kaif-else loop.
08:34	Mynta save ia ka file da kaba nion Ctrl, s.
08:38	Phai biang sha ka terminal jong ngi, pynlong ia ka file executable. Type:chmod space plus x space ifelse.sh. Nion Enter.
08:52	Type: dot slash ifelse.sh . Nion Enter.
08:57	Hangne ka la pyni:
08:59	Enter password: Ngan pyndap abc. Nion Enter.
09:05	Namar ba ka password ba la pyndap ka bakla, ka pyni ia ka khubor kum “Access denied”.
09:11	To ngin execute sa shisien, tangba mynta ngin pyndap ia ka password kum abc123.
09:21	Ka la pyni Password accepted.
09:25	Bad da kane ngi la poi sha kaba kut jong kane ka jinghikai.
09:28	Phai biang sha ki slides jong ngi bad batai kyllum.
09:31	Ha kane ka jinghikai, ngi la peit ia ka jingdonkam jong ka test command, simple if statement badif-else statement.
09:41	Kum ka kam na ka bynta jong phi
09:43	Thoh ia ka script, shim ia ka kyrteng jong phi kum ka input.
09:46	Kadei ban check ia kane ka kyrteng bad ka username jong ka system jong phi.
09:51	Lada ka username ka iahap, kadei ban ai khublei ia phi da kaba pyni “Hello”.
09:56	Lym kumta, kadei ban pyni “Try again”.
10:00	HINT: Ka system username jong phi ka don ha u variable $USER.
10:06	Peit ia ka video ba don ha ka link ba la ai harum
10:09	Ka batai kyllum ia ka Spoken-Tutorial project.
10:11	Lada phim don ia ka bandwidth kaba biang , phi lah ban shu download bad peit ia ka .
10:16	Ka kynhun jong ka Spoken-Tutorial Project:
10:18	Ka pynlong ia ki workshops da kaba pyndonkam da ki spoken tutorials
10:22	Ka ai sertiphikate sha kito kiba pass ha ka online test.
10:26	Na ka bynta ki jingtip ba bniah, sngewbha thoh sha ka contact@spoken-tutorial.org
10:33	Spoken Tutorial Projek kadei shibynta jong ka "Talk to a Teacher" projek.
10:37	La kyrshan ia ka da ka National Mission on Education lyngba ka ICT, MHRD, Sorkar India.
10:45	Kham bun ki jingtip halor kane ka mission kidon ha ka link ba la ai harum http://spoken-tutorial.org/NMEICT-Intro
10:51	Kane ka script la noh synniang da ka FOSSEE bad ka kynhun jong ka Spoken-Tutorial .
10:56	Bad nga I Meboreen na Shillong , nga pynkut ia kane.
11:01	Khublei shibun ia ka jingsnohkti lang jong phi.

Contributors and Content Editors

Meboreen Mary