{"id":65730,"date":"2021-07-12T04:10:05","date_gmt":"2021-07-12T08:10:05","guid":{"rendered":"http:\/\/bangla.salearningschool.com\/recent-posts\/topic-2-example-debug-a-script-linux-unix-shell-programming-001\/"},"modified":"2021-07-12T04:10:05","modified_gmt":"2021-07-12T08:10:05","slug":"topic-2-example-debug-a-script-linux-unix-shell-programming-001","status":"publish","type":"post","link":"http:\/\/bangla.sitestree.com\/?p=65730","title":{"rendered":"Topic 2: Example: Debug a Script #Linux\/Unix: Shell Programming – 001"},"content":{"rendered":"

Example debugging a Script<\/strong><\/p>\n

 <\/p>\n

bash-3.2$ sh -x<\/strong> scriptwithcomments.sh
\n+ echo SCRIPT BEGINS
\nSCRIPT BEGINS
\n+ echo Hello shell!
\nHello shell!
\n+ echo<\/p>\n

+ echo Todays date and time: c
\nTodays date and time: + date
\nFri Apr 27 09:16:29 EDT 2018
\n+ echo<\/p>\n

mynum=21
\nmyday=Monday
\n+ echo The value of mynum is 21
\nThe value of mynum is 21
\n+ echo The value of myday is Monday
\nThe value of myday is Monday
\n+ echo<\/p>\n

+ echo SCRIPT FINISHED!!
\nSCRIPT FINISHED!!
\n+ echo From: http:\/\/sitestree.com\/?p=12217
Categories:Linux\/Unix: Shell Programming – 001
Tags:
Post Data:2018-05-01 23:19:52<\/p>\n

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Example debugging a Script   bash-3.2$ sh -x scriptwithcomments.sh + echo SCRIPT BEGINS SCRIPT BEGINS + echo Hello shell! Hello shell! + echo + echo Todays date and time: c Todays date and time: + date Fri Apr 27 09:16:29 EDT 2018 + echo mynum=21 myday=Monday + echo The value of mynum is 21 The … <\/p>\n

Continue reading<\/a><\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1917],"tags":[],"class_list":["post-65730","post","type-post","status-publish","format-standard","hentry","category-fromsitestree-com","item-wrap"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":65728,"url":"http:\/\/bangla.sitestree.com\/?p=65728","url_meta":{"origin":65730,"position":0},"title":"Topic 2: Example: Comments in Shell Scripts #Linux\/Unix: Shell Programming – 001","author":"Author-Check- Article-or-Video","date":"July 12, 2021","format":false,"excerpt":"bash-3.2$ cat scriptwithcomments.sh #!\/bin\/sh # This script clears the window, greets the user, # and displays the current date and time. #clear # Clear the window echo \"SCRIPT BEGINS\" echo \"Hello $LOGNAME!\" # Greet the user echo echo \"Todays date and time: c\" date # Display current date and time\u2026","rel":"","context":"In "FromSitesTree.com"","block_context":{"text":"FromSitesTree.com","link":"http:\/\/bangla.sitestree.com\/?cat=1917"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":65726,"url":"http:\/\/bangla.sitestree.com\/?p=65726","url_meta":{"origin":65730,"position":1},"title":"Topic 2: Logname, Date Time, Shell Script #Linux\/Unix: Shell Programming – 001","author":"Author-Check- Article-or-Video","date":"July 12, 2021","format":false,"excerpt":"bash-3.2$ cat firstscript.sh #!\/bin\/sh #clear echo \"SCRIPT BEGINS\" echo \"Hello $LOGNAME!\" echo echo \"Today's date and time: c\" date echo mynum=21 myday=\"Monday\" echo \"The value of mynum is $mynum\" echo \"The value of myday is $myday\" echo echo \"SCRIPT FINISHED!!\" echo bash-3.2$ .\/firstscript.sh SCRIPT BEGINS Hello shell! Today's date and\u2026","rel":"","context":"In "FromSitesTree.com"","block_context":{"text":"FromSitesTree.com","link":"http:\/\/bangla.sitestree.com\/?cat=1917"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":65722,"url":"http:\/\/bangla.sitestree.com\/?p=65722","url_meta":{"origin":65730,"position":2},"title":"Topic 1: Basic Date Displaying Shell Script #Linux\/Unix: Shell Programming – 001","author":"Author-Check- Article-or-Video","date":"July 12, 2021","format":false,"excerpt":"bash-3.2$ cat echoscript1.sh #!\/bin\/sh #clear echo \"SCRIPT BEGINS\" echo \"Hello $LOGNAME\" echo echo \"Todays date is: c\" date '+%m\/%d\/%y' echo \"and the current time is: c\" date '+%H:%M:%S%n' echo \"Now a list of the processes in the current shell\" ps echo \"SCRIPT FINISHED!!\" bash-3.2$ .\/echoscript1.sh SCRIPT BEGINS Hello shell Todays\u2026","rel":"","context":"In "FromSitesTree.com"","block_context":{"text":"FromSitesTree.com","link":"http:\/\/bangla.sitestree.com\/?cat=1917"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":65685,"url":"http:\/\/bangla.sitestree.com\/?p=65685","url_meta":{"origin":65730,"position":3},"title":"A Basic Shell Program #Linux\/Unix: Shell Programming – 001","author":"Author-Check- Article-or-Video","date":"July 11, 2021","format":false,"excerpt":"#!\/bin\/sh #if enabled - will spit out the script to the screen #set -v #clear the screen clear echo \"SCRIPT BEGINS\" #shows current login name echo \"Hello $LOGNAME\" #shows current date in the same line echo \"Todays date is: c\" date +%m\/%d\/%y #shows current time in the same line echo\u2026","rel":"","context":"In "FromSitesTree.com"","block_context":{"text":"FromSitesTree.com","link":"http:\/\/bangla.sitestree.com\/?cat=1917"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":65693,"url":"http:\/\/bangla.sitestree.com\/?p=65693","url_meta":{"origin":65730,"position":4},"title":"Example use of case in KSH. Show Today’s Day Name #Linux\/Unix: Shell Programming – 001","author":"Author-Check- Article-or-Video","date":"July 11, 2021","format":false,"excerpt":"bash-3.2$ cat ksh_case_example_1.sh #!\/bin\/ksh #show today's day name DAY=`date +%a` #show value of $DAY echo $DAY #based on the value of the DAY variable show the day name in full format case \"$DAY\" in Mon) echo \"Monday\" ;; Tue) echo \"Tuesday\" ;; Wed) echo \"Wednesday\" ;; Thu) echo \"Thursday\" ;;\u2026","rel":"","context":"In "FromSitesTree.com"","block_context":{"text":"FromSitesTree.com","link":"http:\/\/bangla.sitestree.com\/?cat=1917"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":65687,"url":"http:\/\/bangla.sitestree.com\/?p=65687","url_meta":{"origin":65730,"position":5},"title":"Examples of using variables in a Shell Program #Linux\/Unix: Shell Programming – 001","author":"Author-Check- Article-or-Video","date":"July 11, 2021","format":false,"excerpt":"#!\/bin\/sh #assign value to a variable and print to the screen NAME=\"Justetc\" echo $NAME #Ask the user to enter a Name echo ################################## echo \"enter name\" #read command is used to take input from the user read X #print the value two times to the screen echo $X echo $X\u2026","rel":"","context":"In "FromSitesTree.com"","block_context":{"text":"FromSitesTree.com","link":"http:\/\/bangla.sitestree.com\/?cat=1917"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"_links":{"self":[{"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/posts\/65730","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=65730"}],"version-history":[{"count":0,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/posts\/65730\/revisions"}],"wp:attachment":[{"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=65730"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=65730"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=65730"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}