sbase

suckless unix tools
git clone git://git.suckless.org/sbase
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0019-ed.sh (182B)

      1 #!/bin/sh
      2 tmp=tmp.$$
      3 
      4 trap 'rm -f $tmp' EXIT
      5 trap 'rm -f $tmp; kill -KILL $$' HUP INT TERM
      6 
      7 set -e
      8 
      9 ../ed -s $tmp <<EOF >/dev/null
     10 a
     11 1
     12 2
     13 .
     14 5d
     15 x
     16 EOF
     17 
     18 printf '1\n2\n' | diff -u $tmp -