EN
Bash - cut n first characters from string
10 points
in this article, we would like to show how to remove first N characters from some string in Bash.
Quick solution (cutting 2 first characters):
xxxxxxxxxx1
# 2+12
# |3
# v4
echo "123456" | tail -c +3 # 3456Where:
tail -c +3cuts first characters starting counting them from 1.
Output:
xxxxxxxxxx1
3456
In this section, you will find a reusable function that cuts text.
xxxxxxxxxx1
2
3
function cut_text() # text, offset4
{5
echo "$1" | tail -c "+$(($2 + 1))"6
}7
8
9
# Usage example:10
11
offset=212
text="123456"13
14
result="$(cut_text "$text" "$offset")"15
16
echo "$result" # 3456