Some\u00a0exercises in\u00a0handling parameters in a script:<\/p>\n
#Loop Though the arguments provided ##loop through parameters, start with end of BASH_ARGV #if not the last don’t restart dock echo Arg $loopNumber: ${BASH_ARGV[$i]} $conditionalString ##loop through parameters, start with end of BASH_ARGV #if not the last don’t restart dock echo Arg $loopNumber: ${BASH_ARGV[$i]} $conditionalString (WordPress is bugging the heck out of me with the code tags breaking when their are line breaks… sorry, that’s an exercise for the Googler)<\/p>\n","protected":false},"excerpt":{"rendered":" Some\u00a0exercises in\u00a0handling parameters in a script: Using BASH_ARGV to loop through all arguments #!\/bin\/bash #debugging output [ -f \/tmp\/debug ] && set -x #Loop Though the arguments provided #BASH places arguments in reverse order in BASH_ARGV array #Start at end of array (ARGC – 1) for (( i=$(( $BASH_ARGC – 1 )); i>=0; i– )); […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4,12],"tags":[],"class_list":["post-625","post","type-post","status-publish","format-standard","hentry","category-os-x","category-scripting"],"_links":{"self":[{"href":"https:\/\/www.brunerd.com\/blog\/wp-json\/wp\/v2\/posts\/625","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.brunerd.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.brunerd.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.brunerd.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.brunerd.com\/blog\/wp-json\/wp\/v2\/comments?post=625"}],"version-history":[{"count":5,"href":"https:\/\/www.brunerd.com\/blog\/wp-json\/wp\/v2\/posts\/625\/revisions"}],"predecessor-version":[{"id":630,"href":"https:\/\/www.brunerd.com\/blog\/wp-json\/wp\/v2\/posts\/625\/revisions\/630"}],"wp:attachment":[{"href":"https:\/\/www.brunerd.com\/blog\/wp-json\/wp\/v2\/media?parent=625"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.brunerd.com\/blog\/wp-json\/wp\/v2\/categories?post=625"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.brunerd.com\/blog\/wp-json\/wp\/v2\/tags?post=625"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}#!\/bin\/bash
\n#debugging output
\n[ -f \/tmp\/debug ] && set -x<\/code><\/p>\n
\n#BASH places arguments in reverse order in BASH_ARGV array
\n#Start at end of array (ARGC – 1)
\nfor (( i=$(( $BASH_ARGC – 1 )); i>=0; i– )); do
\nitem=”${BASH_ARGV[$i]}”
\necho “\\$$(( $BASH_ARGC – $i )): $item”
\ndone<\/p>\nLoop through all arguments with special handling of first and last only<\/h2>\n
#!\/bin\/bash
\n[ -f \/tmp\/debug ] && set -x
\n##loop through parameters, start with end of BASH_ARGV
\nfor (( loopNumber=1, i=$(( $BASH_ARGC - 1 )); i>=0; i--, loopNumber++ )); do
\n#do something special for first and last
\nif [ $i -eq $(( $BASH_ARGC - 1 )) ]; then
\nconditionalString=\"(I am the first one!)\"
\nelif [ $i -eq 0 ]; then
\nconditionalString=\"(I am the last one!)\"
\nelse
\nunset conditionalString
\nfi
\necho Arg $loopNumber: ${BASH_ARGV[$i]} $conditionalString
\ndone<\/code><\/p>\nLoop through all arguments with special handling of first and everything else<\/h2>\n
#!\/bin\/bash
\n[ -f \/tmp\/debug ] && set -x<\/code><\/p>\n
\nfor (( loopNumber=1, i=$(( $BASH_ARGC – 1 )); i>=0; i–, loopNumber++ )); do<\/p>\n
\nif [ $i -eq $(( $BASH_ARGC – 1 )) ]; then
\nunset conditionalString
\nconditionalString=”(I am the first)”
\nelse
\nconditionalString=”(I am not the first)”
\nfi<\/p>\n
\ndone<\/p>\nLoop through all arguments with special handling of the last and everything else<\/h2>\n
#!\/bin\/bash
\n[ -f \/tmp\/debug ] && set -x<\/code><\/p>\n
\nfor (( loopNumber=1, i=$(( $BASH_ARGC – 1 )); i>=0; i–, loopNumber++ )); do<\/p>\n
\nif [ ! $i -eq 0 ]; then
\nconditionalString=”(I am not the last)”
\nelse
\nunset conditionalString
\n#conditionalString=”(I am the last)”
\nfi<\/p>\n
\ndone<\/p>\n