sed Q

kzo81 · 01-06-2022, 11:23 AM

Hi,

I'd like to change red string with sed, but I couldn figure out in the afternoon:

WT-Client AaaabbBbbbb (172.10.10.1)
WT-Client X (172.10.10.1)

I was trying this:

Code:

echo "WT-Client AaaabbBbbbb (172.10.10.1)" | sed 's/^WT-Client.\w.($/WT-Client X/g'

Could you please help me?

Turbocapitalist · 01-06-2022, 11:33 AM

You're very close. Use the -r option to adjust the type of regex rules Sed is expecting. You have written an Extended Regular Expression and Sed needs to know that:

Code:

sed -r -e 's/^(WT-Client) \w+/\1 X/'

You can also look at AWK:

Code:

echo "WT-Client AaaabbBbbbb (172.10.10.1)" | awk '$1~/^WT-Client/ {$2 = "X"; print}'

kzo81 · 01-06-2022, 11:34 AM

Thank you

pan64 · 01-06-2022, 11:53 AM

without -r:

Code:

echo "WT-Client AaaabbBbbbb (172.10.10.1)" | sed 's/^WT-Client.\w*.(/WT-Client X (/g'

shruggy · 01-06-2022, 01:59 PM

Without /g

Code:

echo "WT-Client AaaabbBbbbb (172.10.10.1)" |
sed '/^WT-Client/s/ \w*/ X/'