Type of Shell (Bangla)

‡kj Gi cÖKvi †f`t

‡kj g~jZ ‡evb© †kj Ges wm †kj GB `yB fv‡M wef³|  ‡evb© †kj Gj‡Mvj 68 (ALGOL 68) j¨s¸‡qR ÷vBj Abymib K‡i ‰Zix Kiv n‡q‡Q| ZvB †evb© †kj Gi wm‡›U· A‡bKUv Gj‡Mvj j¨s¸‡qR mv`„k¨c~b©|†evb© †kj †W‡fjc Kiv nq GwU GÛ wU j¨e‡iUwi‡Z| GwU †Wfjc K‡ib w÷‡db †evb© (Stphen Bourne)| GwU BDwb· fvm©b 7 Gi wWdë †kj wn‡m‡e 1977 mv‡j cÖ_g wiwjR Kiv nq| ‡evb© †kj Gi evBbvix dvBj wjbv· Acv‡iwUs wm‡÷g Gi  /bin/sh ‡jv‡Kk‡b _v‡K| GwU GLbI A‡bK BDwb· wWw÷ªweDk‡bi Gi i“U (root) mycvi BDRv‡ii wWdë ‡kj wn‡m‡e e¨enªZ nq| Kb© †kj (ksh), †evb© G‡MBb †kj (bash), POSIX ‡kj (sh) cªf„wZ †evb© †kj cwievi f~³| †evb© †kj Gi wWdë cÖ¤úU wn‡m‡e $ wPý e¨enªZ nq|

‡evb© †kj w¯ŒÞ Gi D`vnib t

#!/bin/sh

if [ $days -gt 365 ]

then

   echo This is over a year.

fi

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wm †kj w¯ŒÞ  Gi D`vnib t

#!/bin/csh

if ( $days > 365 ) then

   echo This is over a year.

endif