Differences

This shows you the differences between two versions of the page.

--- linux:bash [2023/03/07 11:01] – [Linux.Bash] admin
+++ linux:bash [2024/02/14 06:45] (current) – [Linux.Bash] admin
@@ Line 10: / Line 10: @@
 </code>
+<code BASH>
+# check xterm color
+msgcat
+</code>
+++++ Пример|
+{{:linux:linux:bash:pasted:20240214-064440.png}}
+++++
+<code BASH>
 # grep for configuration without comment line
 egrep -v "^$|^[[:space:]]*#" /etc/postfix/main.cf
+</code>
 bash
   * [[https://linuxize.com/post/bash-functions/|bash-functions]]
@@ Line 141: / Line 149: @@
 ===== Scripting =====
   * scripting pitfails https://mywiki.wooledge.org/BashPitfalls#cat_file_.7C_sed_s.2Ffoo.2Fbar.2F_.3E_file
+===== Scripting-code =====
+  * read line by line - https://phoenixnap.com/kb/bash-read-file-line-by-line
+<code BASH>
+#!/bin/bash
+# Declare variables
+vm_name=""
+vm_path=""
+skipped_lines=""
+current_line_number=1
+# Read the file line by line
+while IFS=';' read -r vm_name vm_path; do
+  # Check if the line has the correct format
+  if [[ -z "$vm_name" ]] || [[ -z "$vm_path" ]]; then
+    skipped_lines="${skipped_lines}Line ${current_line_number}: ${line}\n"
+  fi
+  # Process the variables here if the line has the correct format
+  if [[ -n "$vm_name" ]] && [[ -n "$vm_path" ]]; then
+    echo "VM name: $vm_name"
+    echo "VM path: $vm_path"
+  fi
+  # Increment the line number
+  current_line_number=$((current_line_number+1))
+done < file.txt
+# Print the skipped lines
+if [[ -n "$skipped_lines" ]]; then
+  echo "The following lines were skipped because they did not have the correct format:"
+  echo "$skipped_lines"
+fi
+</code>