sed (editor)
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↑ https://stackoverflow.com/a/801036
wikipedia:sed
(1974) utility is using for text processing, such as strings replacements.
sed /xxx/yyy/g
g - global
brew install gnu-sed
Sed Basic examples
- Replace all occurrences of TEXT_STRING
sed -i s/OLD_TEXT_STRING/NEW_TEXT_STRING/g file.txt
sed -i s/^/TEST_TO_APPEND_AT_BEGINNIG/ file.txt
- Append a space at the beginning of lines:
- Append a text (TEST_TO_APPEND_AT_END) at the end of a line (
$
):
sed -i s/$/TEST_TO_APPEND_AT_END/ file.txt
- Move N lines from text file to new file:
head -1000 input > output && sed -i '1,+999d' input
[1]
- Add at the beginning and end of a sentence:
<code> and </code>
sed s/'^'/'\<code\>'/ | sed s/'$'/'\<\/code\>'/
- Replace spaces:
sed s/' '//g
- Delete chareacters before a pattern
sed -e 's/....yourtext/ yourtext/g' file.txt
Help
usage: sed script [-Ealn] [-i extension] [file ...] sed [-Ealn] [-i extension] [-e script] ... [-f script_file] ... [file ...]
Related commands
awk
lineinfile (Ansible)
- Concatenate lines on a file using
tr
cat your_file.txt | while read i; do echo "YOUR_TEST $i"; done
cat your_file.txt | while read i; do echo "$(date) $i"; done
sed -n
- Chef: Editing a file
- Redirection: double redirection
- file (Puppet)
See also
sed, gsed
,-n, -i
,Ansible: replace
,append
,Chef: Editing a file
,lineinfile
- Editors:
vi, vim
,sed
,awk
, emacs,lineinfile (Ansible)
, Atom,paste
, Neovim, Rider,visudo, vipw
,update-alternatives
,nano
,more, less
,.vimrc
,set (vi)
zed ack, ag, grep
,egrep, fgrep
,agrep
,ngrep
,pgrep
,awk
,sed
,strings
,tr
,tail
,mtail
,git grep
,wc
,uniq
,LogQL
,findstr (Windows)
,rg, git-grep, cut
- Ansible
lineinfile
module
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