diff --git a/index-lab.adoc b/index-lab.adoc index 04f7249..a51242b 100644 --- a/index-lab.adoc +++ b/index-lab.adoc @@ -71,7 +71,7 @@ TIP: Absolute basics === http://docs.swarmlab.io/SwarmLab-HowTos/labs/ls/array-1_ls.adoc.html[Bash - Associative array examples^] -=== http://docs.swarmlab.io/SwarmLab-HowTos/labs/ls/heredocs_ls.adoc.html[Bash - variable indirect expansion^] +=== http://docs.swarmlab.io/SwarmLab-HowTos/labs/ls/heredocs_ls.adoc.html[Bash - Heredocs, Positional Parameters^] :hardbreaks: diff --git a/index-lab.adoc.html b/index-lab.adoc.html index 5a2018a..384a93a 100644 --- a/index-lab.adoc.html +++ b/index-lab.adoc.html @@ -465,7 +465,7 @@ body.book #toc,body.book #preamble,body.book h1.sect0,body.book .sect1>h2{page-b
  • 2.2. The proc filesystem
  • 2.3. VIM - A simple workflow example with the vim editor
  • 2.4. Bash - Associative array examples
    • -
  • 2.5. Bash - variable indirect expansion
    • +
  • 2.5. Bash - Heredocs, Positional Parameters
  • 3. Internet of things (IoT) @@ -587,7 +587,7 @@ Absolute basics
    -

    2.5. Bash - variable indirect expansion

    +

    2.5. Bash - Heredocs, Positional Parameters



    @@ -921,7 +921,7 @@ This tutorial demonstrates some common nmap port scanning scena

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n +0000149082 00000 n +0000149297 00000 n +0000150660 00000 n +0000151575 00000 n +0000157006 00000 n +0000157227 00000 n +0000157588 00000 n trailer << /Size 234 /Root 2 0 R /Info 1 0 R >> startxref -158452 +158503 %%EOF diff --git a/labs/ls/heredocs_ls.adoc b/labs/ls/heredocs_ls.adoc index a55bac1..39aac42 100644 --- a/labs/ls/heredocs_ls.adoc +++ b/labs/ls/heredocs_ls.adoc @@ -25,7 +25,6 @@ Assuming you're already logged in == heredoc - === Exercise [source,bash] @@ -64,9 +63,25 @@ done echo "" echo "" + +cat << FOE > testfile.sh + +declare -A array=( + [1,0]="first name" + [1,1]="second name" + [2,0]="third name" + [3,0]="foo bar" + [test 1]="test bar" + ) +EOF +) + ---- + + + === expansion [source,bash] @@ -76,3 +91,70 @@ win="real_fc" # $win is "real_fc" echo "${!win}" # we print the variable linked by $win's content ---- +== Bash Positional Parameters + +- vim testvar.sh +- cut-paste +- chmod +x ./testvar.sh +- ./testvar.sh a1 a2 a3 a4 a5 a6 a7 a8 a9 10 11 12 13 + + +[source,bash] +---- + +echo $# +echo $@ +echo $? + + +cat <<'EOF' +$# = number of arguments. +$@ = what parameters were passed. +$* = what parameters were passed. +$? = was last command successful. Answer is 0 which means 'yes' +EOF + + + +cat << FOE > testfile.sh +#!/bin/bash +RUSER=$1 +ID=$2 +SERVICE=$3 +SERVICE_STACK=$4 +VNCport=$5 +RREPLICAS=$6 +RREGION=$7 +TTYport=$8 +PASSWORDrw=$9 +PASSWORDview=${10} +GIT_TUTOR=${11} +REBOOT=${12} +USERscope=${13} +FOE +chmod +x ./testfile.sh + +#./testfile.sh +# +cat << 'FOE' > testfile1.sh +#!/bin/bash +RUSER=$1 +ID=$2 +SERVICE=$3 +SERVICE_STACK=$4 +VNCport=$5 +RREPLICAS=$6 +RREGION=$7 +TTYport=$8 +PASSWORDrw=$9 +PASSWORDview=${10} +GIT_TUTOR=${11} +REBOOT=${12} +USERscope=${13} +FOE +chmod +x ./testfile1.sh + +---- + +== extras +