Autosave: 2025-02-22 14:50:49

neuron/ac28ab9c-a447-4a90-96b7-2f2694d2a9e4/Capturing_program_error_in_Bash.md

@@ -14,6 +14,14 @@ if ! grep "pattern" file.txt; then
 fi
 ```
 
+This just checks the exit code. If you want the actual error too:
+
+```sh
+if ! ERROR=$(grep "pattern" file.txt 2>&1); then
+    echo "Pattern not found: $ERROR"
+fi
+```
+
 If you want to store the outcome of a command and refer to it later, use `$?`.
 This built-in variable captures the exit status of the last executed command (0
 for success, non-zero for failure):
@@ -42,3 +50,13 @@ if [ $status1 -ne 0 ] || [ $status2 -ne 0 ]; then
     echo "One of the commands failed"
 fi
 ```
+
+Again, this just checks the exit code, to capture the error:
+
+```sh
+error_msg=$(command 2>&1)
+status=$?
+if [ $status -ne 0 ]; then
+    echo "Failed: $error_msg"
+fi
+```

neuron/ac28ab9c-a447-4a90-96b7-2f2694d2a9e4/index.md

@@ -13,9 +13,9 @@ computer science.
 
 <a href="https://thomasabishop.github.io/eolas/tags">View tags</a>
  
-**Build ID:** d01ec7d6-3cb6-49cf-8ad7-eac41eb5b055
+**Build ID:** ac28ab9c-a447-4a90-96b7-2f2694d2a9e4
 
-**Published:** Sat 22 Feb 2025 10:17:40
+**Published:** Sat 22 Feb 2025 14:50:43
 
 ### Recent edits 
 

scripts/auto_save.sh

@@ -1,21 +1,16 @@
 #!/bin/bash
 
-#============================================================================#
-# FILE: auto_save.sh																												 #
-# USAGE: auto_save.sh																												 #
-# DESCRIPTION: Automatically pulls and commits changes to remote after:      #
-# running cleanup scripts																										 #
-# generating Neuron zettelkasten static site and writing to neuron/					 #
-#============================================================================#
+# Automatically pull and commit changes to remote after generating Neuron static
+# site
 
 USER=thomas
 export XDG_RUNTIME_DIR=/run/user/1000
 source /home/thomas/.env
 
-# tidy_filenames="/home/thomas/repos/eolas/scripts/tidy_filenames.sh"
-# purge_images="/home/thomas/repos/eolas/scripts/purge_images.sh"
+SLACK_NOTIFIER="${HOME}/repos/utilities/slack_notifier.sh"
+NEURON_GENERATOR="${HOME}/repos/neuron-zk-generator/dist/neuron-zk-generator"
 
-cd /home/thomas/repos/eolas
+cd "${HOME}/repos/eolas"
 
 echo "Checking for changes..."
 git pull >/dev/null 2>&1
@@ -27,15 +22,8 @@ if [ "$changes_exist" -eq 0 ]; then
 	exit 0
 fi
 
-# echo "Standardising file-names..."
-# source ${tidy_filenames}
-
-# echo "Removing unused images..."
-# source ${purge_images}
-# pointless comment
-
-#neuron-zk-generator
-/home/thomas/repos/neuron-zk-generator/dist/neuron-zk-generator
+# Run Neuron generator
+$NEURON_GENERATOR
 
 echo "Changes exist. Updating remote..."
 git pull >/dev/null 2>&1
@@ -43,4 +31,4 @@ git add .
 git commit -q -m "Autosave: $(date +"%Y-%m-%d %H:%M:%S")"
 git push
 
-/home/thomas/repos/slack-notifier/src/index.js 'eolas' '✅ Eolas: auto-save executed'
+$SLACK_NOTIFIER 'success' 'eolas: auto-save executed'

zk/Capturing_program_error_in_Bash.md

@@ -14,6 +14,14 @@ if ! grep "pattern" file.txt; then
 fi
 ```
 
+This just checks the exit code. If you want the actual error too:
+
+```sh
+if ! ERROR=$(grep "pattern" file.txt 2>&1); then
+    echo "Pattern not found: $ERROR"
+fi
+```
+
 If you want to store the outcome of a command and refer to it later, use `$?`.
 This built-in variable captures the exit status of the last executed command (0
 for success, non-zero for failure):
@@ -42,3 +50,13 @@ if [ $status1 -ne 0 ] || [ $status2 -ne 0 ]; then
     echo "One of the commands failed"
 fi
 ```
+
+Again, this just checks the exit code, to capture the error:
+
+```sh
+error_msg=$(command 2>&1)
+status=$?
+if [ $status -ne 0 ]; then
+    echo "Failed: $error_msg"
+fi
+```