fork(1) download 
  1. #!/bin/bash
  2. item=
  3. while read -r first second _; do
  4.   if [[ $first = REQUIRES ]]; then
  5.     printf '%s REQUIRES %s\n' "$item" "$second"
  6.   else
  7.     item=$first
  8.   fi
  9. done
Success #stdin #stdout 0.02s 5268KB
comments (?)
stdin 
Y
REQUIRES Z
A
REQUIRES B
C
REQUIRES D
REQUIRES E
REQUIRES F
G
REQUIRES H
I
REQUIRES J
stdout 
Y REQUIRES Z
A REQUIRES B
C REQUIRES D
C REQUIRES E
C REQUIRES F
G REQUIRES H
https://ideone.com/JejDyG
language:
Bash (bash 5.0.3)
created:
11 years ago
visibility:
public

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