update

Author: wong-ziyi

source/content/.obsidian/workspace.json

@@ -13,12 +13,12 @@
             "state": {
               "type": "markdown",
               "state": {
-                "file": "BSGOU-System/RNA-seq Tool Kits/DeVlog/20250729-fenA-processx_convert-theme.md",
+                "file": "Dry/Software Engineering/FASTQ Cheat Sheet - Linux OS.md",
                 "mode": "source",
                 "source": false
               },
               "icon": "lucide-file",
-              "title": "20250729-fenA-processx_convert-theme"
+              "title": "FASTQ Cheat Sheet - Linux OS"
             }
           }
         ]
@@ -172,6 +172,14 @@
   },
   "active": "438080deb723bad3",
   "lastOpenFiles": [
+    "Dry/Software Engineering/Extract Tissue CIDs from Stereo-seq.md",
+    "Dry/Software Engineering/CARLIN Lineage Analysis on Stereo-seq.md",
+    "Dry/Nucleic Acid/Spatial Transcriptomics.md",
+    "Dry/Software Engineering/FASTQ Cheat Sheet - Linux OS.md",
+    "Dry/Software Engineering/index.md",
+    "Dry/Software Engineering/BAM file Cheat Sheet - Linux OS.md",
+    "Dry/Software Engineering/TikZ.md",
+    "BSGOU-System/RNA-seq Tool Kits/DeVlog/20250729-fenA-processx_convert-theme.md",
     "BSGOU-System/RNA-seq Tool Kits/BRAP.md",
     "conflict-files-obsidian-git.md",
     "BSGOU-System/Journal Club/index.md",
@@ -188,20 +196,12 @@
     "BSGOU-System/Journal Club/JC000013.md",
     "BSGOU-System/Journal Club/Is Inflammaging Really Universal? This Study Says Nope.md",
     "BSGOU-System/Journal Club",
-    "BSGOU-System/RNA-seq Tool Kits/DeVlog/20250729-fenA-processx_convert-theme.md",
     "BSGOU-System/RNA-seq Tool Kits/DeVlog/index.md",
     "BSGOU-System/RNA-seq Tool Kits/index.md",
     "BSGOU-System/RNA-seq Tool Kits/DeVlog",
     "BSGOU-System/RNA-seq Tool Kits/GREP1.md",
-    "Dry/Software Engineering/BAM file Cheat Sheet - Linux OS.md",
-    "Dry/Software Engineering/CARLIN Lineage Analysis on Stereo-seq.md",
-    "Wet/Nucleic Acid/in situ hybridization.md",
-    "BSGOU-System/index.md",
     "BSGOU-System/RNA-seq Tool Kits",
     "BSGOU-System",
-    "Dry/Software Engineering/Extract Tissue CIDs from Stereo-seq.md",
-    "Dry/Software Engineering/FASTQ Cheat Sheet - Linux OS.md",
-    "Dry/Software Engineering/TikZ.md",
     "Wet/Reagents",
     "00.Images/Workflow-of-CID-mapping.png",
     "00.Images",

source/content/Dry/Software Engineering/FASTQ Cheat Sheet - Linux OS.md

@@ -18,4 +18,16 @@ Check few lines of fastq.gz:
 
 ```bash
 gunzip -c my_fastq.fastq.gz | head -n 10
-```
+```
+
+Search a sequence from **compressed FASTQ (`.fq.gz`)**:
+
+```bash
+zcat your_file.fq.gz | grep -B1 -A2 "ATCGGACCTA" --no-group-separator > matched_reads.fq
+```
+
+
+Search a sequence from **uncompressed FASTQ**:
+```bash
+grep -B1 -A2 "ATCGGACCTA" your_file.fq --no-group-separator > matched_reads.fq
+```