json example alternative without jq

[barcat.git] / barcat

diff --git a/barcat b/barcat
index a5ea9f33c2267c0d2b480a3fad5a874ec3daa478..d3ba821a27802df355ad070a43633d828fba3c16 100755 (executable)
--- a/barcat
+++ b/barcat
@@ -315,15 +315,15 @@ Draw a sine wave:
 
     seq 30 | awk '{print sin($1/10)}' | barcat
 
-Compare file sizes:
+Compare file sizes (with human-readable numbers):
 
-    du -d0 -m * | barcat
+    du -d0 -b * | barcat -H
 
-Memory usage of user processes:
+Memory usage of user processes with long names truncated:
 
     ps xo %mem,pid,cmd | barcat -l40
 
-Monitor network latency:
+Monitor network latency from prefixed results:
 
     ping google.com | barcat -f'time=\K' -t
 
@@ -341,7 +341,7 @@ Number of HTTP requests per day:
 
     cat log/access.log | cut -d\  -f4 | cut -d: -f1 | uniq -c | barcat
 
-Any kind of database query with leading counts:
+Any kind of database query with counts, preserving returned alignment:
 
     echo 'SELECT count(*),schemaname FROM pg_tables GROUP BY 2' |
     psql -t | barcat -u
@@ -349,7 +349,10 @@ Any kind of database query with leading counts:
 External datasets, like movies per year:
 
     curl https://github.com/prust/wikipedia-movie-data/raw/master/movies.json |
-    jq '.[].year' | uniq -c | barcat
+    perl -054 -nlE 'say if s/^"year"://' | uniq -c | barcat
+
+But please get I<jq> to process JSON
+and replace the manual selection by C<< jq '.[].year' >>.
 
 Pokémon height comparison: