CODEWITHSUNDEEP
stringbashsed
f1rstsurf
f1rstsurf

Reputation: 647

Find pattern and move it to end of line

I am looking for a solution that would allow me to find a pattern between the characters / and s_ and move it to the end of the line.

I assume the following string:

"s_check_login_password= s_comm_type=TCPIP s_dest_address=10.55.28.125/22 s_org_address= s_net_proxy= s_ft_proxy="

From this, I want to get the value just after the / of the s_dest_address field: 22, and move it to the end of the line.

I tried this:

sed 's/\([^/\]*[^ s_]* s_\)\(.*;\)/\2\1/'

but I guess it's not the good way. Is there any way to do it with sed?

Upvotes: 2

Views: 1901

Answers (2)

ctac_
ctac_

Reputation: 2471

With sed

sed -E 's#(.*/)([^ ]*)(.*)#\1\3\2#' infile
  • Change / to # as sed expression separator so there's no need to escape it.
  • ([^ ]*) your expected match (22).
  • (.*)the rest of the string.
  • \1\3\2 change the order in which capturing groups are returned.

Upvotes: 0

RavinderSingh13
RavinderSingh13

Reputation: 133538

Since you have not pasted the expected output so based on your summary of question only I have written this.

awk 'match($0,/\/[^ s]*/){print substr($0,1,RSTART),substr($0,RSTART+RLENGTH+1),substr($0,RSTART+1,RLENGTH-1)}' Input_file

Adding a non-one liner form of solution too now.

awk '
match($0,/\/[^ s]*/){
  print substr($0,1,RSTART),substr($0,RSTART+RLENGTH+1),substr($0,RSTART+1,RLENGTH-1)
}
'   Input_file

Explanation:

awk '
match($0,/\/[^ s]*/){  ##Using match utility to match the REGEX where it should match from / to space s and if REGEX match found then do following:
  print substr($0,1,RSTART),substr($0,RSTART+RLENGTH+1),substr($0,RSTART+1,RLENGTH-1) ##Printing substring from 1st character to till value of RSTART then print substring from value of RSTART+RLENGTH+1 to till end then print substring from RSTART+1 value to till RLENGTH-1 value. Basically RSTART and RLENGTH are the out of the box variable for awk which will be SET when a match is found of REGEX, where RSTART is starting index of match and RLENGTH is the length of the REGEX match.
}
' Input_file           ##Mentioning Input_file name here.

Upvotes: 2

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