Command line argument in shell script
\nPassing arguments to the main program when it start is know as command line arguments
\nIn shell scripting arguments can be described like below<\/p>\n
$0 – shows program name which you running
\n$1 – shows first argument
\n$2 – display second argument
\n$3 – display third argument
\n$n – n th argument
\n$# – shows number of arguments passed to the program
\n$* – shows entire string of parameters you passed<\/p>\n
SCRIPT:
\n#!\/bin\/bash
\necho “programme name is $0”
\necho “first argument is $1”
\necho “Second argument is $2”
\necho “Total command line arguments is $#”
\necho “Entered arguments was :$*”<\/p>\n
RUN THE SCRIPT:
\n.\/cmd_arg.sh hi this is mohan<\/p>\n
OUTPUT:
\nprogramme name is .\/cmd_arg.sh
\nfirst argument is hi
\nSecond argument is this
\nTotal command line arguments is 4
\nEntered arguments was :hi this is mohan<\/p>\n","protected":false},"excerpt":{"rendered":"
Command line argument in shell script Passing arguments to the main program when it start is know as command line arguments In shell scripting arguments can be described like below<\/p>\n
$0 – shows program name which you running $1 – shows first argument $2 – display second argument $3 – display third argument $n – […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"_links":{"self":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts\/3367"}],"collection":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3367"}],"version-history":[{"count":1,"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts\/3367\/revisions"}],"predecessor-version":[{"id":3368,"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts\/3367\/revisions\/3368"}],"wp:attachment":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3367"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3367"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3367"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}