{"id":13856,"date":"2022-10-05T15:01:00","date_gmt":"2022-10-05T09:31:00","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-bash-if-then-script-to-parse-file-closed\/"},"modified":"2022-10-05T15:01:00","modified_gmt":"2022-10-05T09:31:00","slug":"solved-bash-if-then-script-to-parse-file-closed","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-bash-if-then-script-to-parse-file-closed\/","title":{"rendered":"[Solved] bash, if then script to parse file [closed]"},"content":{"rendered":"

[ad_1]
\n<\/p>\n

\n
\n
<\/div>\n
\n
\n

plain bash<\/code>, though can easily be converted to POSIX sh. <\/p>\n

#!\/usr\/bin\/env bash\n\nin=0 # whether we are inside a 'virtual' block\n     # such a block ends once we meet a line that starts with '}'\n\nwhile read -r\ndo\n    if [[ $REPLY =~ ^virtual ]]; then\n        in=1\n        echo \"${REPLY% *}\"\n    elif (( in )); then\n        if [[ $REPLY =~ ^pool ]]\n        then echo \"$REPLY\"\n        elif [[ $REPLY =~ ^destination ]]\n        then echo \"${REPLY%:*}\" # or just \"$REPLY\" if you want the ':https' part\n        elif [[ $REPLY =~ ^} ]]\n        then in=0\n        fi\n    fi\ndone < file\n<\/code><\/pre>\n
where file<\/code><\/em> is your data. You can change that to \"$1\"<\/code>
\nand give the file as an argument to the script. <\/p>\n
tested with given data, returns:<\/p>\n
virtual vs_website_443\npool pl_website_443\ndestination 11.11.11.11\n<\/code><\/pre>\n
\n
using plain awk<\/code><\/p>\n
awk '$1 == \"virtual\" { f=1; print $1,$2; next }         \\\n     f == 1 { if ($1 == \"pool\") { print }               \\\n              else if ($1 == \"destination\") { print }   \\\n              else if ($0 ~ \/^}\/) { f=0 }               \\\n     }' file\n<\/code><\/pre>\n
with the given data output is:<\/p>\n
 $ awk '$1 == \"virtual\" { f=1; print $1,$2; next } f == 1 { if ($1 == \"pool\") { print } else if ($1 == \"destination\") { print } else if ($0 ~ \/^}\/) { f=0 } }' file\nvirtual vs_website_443\npool pl_website_443\ndestination 11.11.11.11:https\n<\/code><\/pre>\n<\/p><\/div>\n
<\/div>\n<\/div>\n
            5<\/span> <\/p><\/div>\n<\/div>\n
[ad_2]<\/p>\n
solved bash, if then script to parse file [closed] <\/p>\n","protected":false},"excerpt":{"rendered":"
[ad_1] plain bash, though can easily be converted to POSIX sh. #!\/usr\/bin\/env bash in=0 # whether we are inside a ‘virtual’ block # such a block ends once we meet a line that starts with ‘}’ while read -r do if [[ $REPLY =~ ^virtual ]]; then in=1 echo “${REPLY% *}” elif (( in )); … Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[1042,424,865,1043],"class_list":["post-13856","post","type-post","status-publish","format-standard","hentry","category-solved","tag-bash","tag-linux","tag-scripting","tag-shell"],"yoast_head":"\n[Solved] bash, if then script to parse file [closed] - JassWeb<\/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:\/\/jassweb.com\/solved\/solved-bash-if-then-script-to-parse-file-closed\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] bash, if then script to parse file [closed] - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] plain bash, though can easily be converted to POSIX sh. #!\/usr\/bin\/env bash in=0 # whether we are inside a 'virtual' block # such a block ends once we meet a line that starts with '}' while read -r do if [[ $REPLY =~ ^virtual ]]; then in=1 echo "${REPLY% *}" elif (( in )); ... 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