Append an echo to file?

Question

In linux, how do I do something like

echo 'hello world' > log.txt

but instead of overwriting the contents of log.txt, it appends to the end of of log.txt?

For full details see the all about [I/O redirection](http://tldp.org/LDP/abs/html/io-redirection.html) in the [Advanced Bash-Scripting Guide](http://tldp.org/LDP/abs/html/index.html). — Zoredache, Aug 14 '10 at 21:03

score 66 · Accepted Answer · answered Aug 14 '10 at 20:56

66

echo 'hello world' >> log.txt

answered Aug 14 '10 at 20:56

laurent

score 8 · Answer 2 · answered Aug 14 '10 at 20:56

8

Try:

>>

In place of:

answered Aug 14 '10 at 20:56

GregD

score 5 · Answer 3 · answered Aug 14 '10 at 22:37

5

In Linux you can also use the useful HERE TAG for multiline append :

cat >> log.txt << EOF
hello word 1
hello word 2
hello word 3
EOF

Linux shell's are more more powerful than windows command prompt! ;)

answered Aug 14 '10 at 22:37

aleroot

While shell may be more powerful than cmd.exe, I would argue it's not more powerful than powershell. – GregD Aug 14 '10 at 23:13
2

PowerShell is a Scripting language and for this need to be compared with another scripting language for example Perl then Perl is more more powerful than PowerShell . ;) :D – aleroot Aug 15 '10 at 06:50
2

Naughty! No language jihads here! – Brent.Longborough Aug 15 '10 at 11:12

score 4 · Answer 4 · answered Aug 14 '10 at 20:56

4

echo 'hello world' >> log.txt

answered Aug 14 '10 at 20:56

disserman

4 Answers4