{"id":11,"date":"2021-12-30T15:06:51","date_gmt":"2021-12-30T15:06:51","guid":{"rendered":"https:\/\/223hosting.com\/?p=11"},"modified":"2021-12-30T15:06:52","modified_gmt":"2021-12-30T15:06:52","slug":"useful-bash-debugging-variables","status":"publish","type":"post","link":"https:\/\/223hosting.com\/index.php\/2021\/12\/30\/useful-bash-debugging-variables\/","title":{"rendered":"Useful BASH debugging variables"},"content":{"rendered":"\n

Bash variable ${LINENO} show the line number in the current script which useful when debugging scripts. Like: #!\/bin\/bash
echo .. foo
bar
echo “${LINENO}” # print 4<\/p>\n\n\n\n


Bash variables that I find useful for debugging are; <\/p>\n\n\n\n

${BASH_COMMAND} \u2192 Last command ran <\/p>\n\n\n\n

${BASH_LINENO[@]} \u2192 List line numbers up to that point<\/p>\n\n\n\n

${FUNKNAME[@]} \u2192 List functions in stack <\/p>\n\n\n\n

${BASH_SOURCE[@]} \u2192 List files in stack<\/p>\n","protected":false},"excerpt":{"rendered":"

Bash variable ${LINENO} show the line number in the current script which useful when debugging scripts. Like: #!\/bin\/bash echo .. foobar echo “${LINENO}” # print 4 Bash variables that I find useful for debugging are; ${BASH_COMMAND} \u2192 Last command ran ${BASH_LINENO[@]} \u2192 List line numbers up to that point ${FUNKNAME[@]} \u2192 List functions in stack […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-11","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\nUseful BASH debugging variables - 223 Hosting<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/223hosting.com\/index.php\/2021\/12\/30\/useful-bash-debugging-variables\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Useful BASH debugging variables - 223 Hosting\" \/>\n<meta property=\"og:description\" content=\"Bash variable ${LINENO} show the line number in the current script which useful when debugging scripts. 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