In shell scripting<\/strong>, #!\/bin\/bash<\/p>\n\n\n\n read ch<\/p>\n\n\n\n case $ch in ✅ Example 4: File type check<\/p>\n\n\n\n read file<\/p>\n\n\n\n case $file in 🔀 What is switch case? In shell scripting, switch case is written as case.It is used to match a value against multiple patterns. 🔹 Syntax Example 3: Check character type #!\/bin\/bash read ch case $ch in[a-z])echo “Lowercase letter”;;[A-Z])echo “Uppercase letter”;;[0-9])echo “Digit”;;*)echo “Special character”;;esac ✅ Example 4: File type check !\/bin\/bash read file case $file in*.sh)echo […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-407","post","type-post","status-publish","format-standard","hentry","category-unix"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/mitalgoswami.in\/index.php?rest_route=\/wp\/v2\/posts\/407","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mitalgoswami.in\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mitalgoswami.in\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mitalgoswami.in\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mitalgoswami.in\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=407"}],"version-history":[{"count":2,"href":"https:\/\/mitalgoswami.in\/index.php?rest_route=\/wp\/v2\/posts\/407\/revisions"}],"predecessor-version":[{"id":409,"href":"https:\/\/mitalgoswami.in\/index.php?rest_route=\/wp\/v2\/posts\/407\/revisions\/409"}],"wp:attachment":[{"href":"https:\/\/mitalgoswami.in\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=407"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mitalgoswami.in\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=407"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mitalgoswami.in\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=407"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}switch case<\/code> is written as case<\/code><\/strong>.
It is used to match a value against multiple patterns<\/strong>.<\/p>\n\n\n\n
\n\n\n\n🔹 Syntax<\/h2>\n\n\n\n
case variable in\n pattern1)\n commands ;;\n pattern2)\n commands ;;\n *)\n default commands ;;\nesac<\/code><\/pre>\n\n\n\nExample 3: Check character type<\/h1>\n\n\n\n
[a-z])
echo “Lowercase letter”
;;
[A-Z])
echo “Uppercase letter”
;;
[0-9])
echo “Digit”
;;
*)
echo “Special character”
;;
esac<\/p>\n\n\n\n!\/bin\/bash<\/h1>\n\n\n\n
*.sh)
echo “Shell script file”
;;
*.txt)
echo “Text file”
;;
*)
echo “Unknown file type”
;;
esac<\/p>\n","protected":false},"excerpt":{"rendered":"