echo into a file while maintaining escaped spaces?

Question

Without updating update_history how can I ensure my text file will contain:

hello\ world john\ doe

That is how can I pass $greeting $name to a function or command as hello\ world john\ doe.

function update_history {
  history=/tmp/hist
  grep -qF "$1" "$history" \
    || (combinations=$(echo "$1" | cat - $history) \
        && echo "$combinations" > $history)
}

greeting=hello\ world
name=john\ doe

update_history "$greeting $name"

score 2 · Accepted Answer · edited Nov 21 '17 at 15:04

2

Enclose the parameter expansions in double quotes:

update_history "$greeting" "$name"

edited Nov 21 '17 at 15:04

Stéphane Chazelas

522,931
91
1,010
1,501

answered Nov 21 '17 at 15:02

saga

1,381
11
36

echo into a file while maintaining escaped spaces?

1 Answers1