Question

1

rated 0 times [ 1] [ 0] / answers: 1 / hits: 2770 / 2 Years ago, fri, december 24, 2021, 11:49:25

I have a file and I need to delete its first letter of each lines. I tried this:

for i in

do

if [ $5 -eq cat harfler | grep `head -n i harfler | head -c 1` ]

then

echo "succeded"

tr -d `head -n i`

fi

done

but nothing happens. Doesn't even echo "succeeded". Any idea why?

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answered 2 Years ago ularousand · Accepted Answer

Use sed as following:

sed 's/^.//' file

For line if starts with spaces:

sed 's/S//' file

Matches any non-white space character but not newline. You can use w or [A-Za-z0-9_] instead.

The command suggested by @gleenjackman:

sed 's/[^[:blank:]]//' file

or

sed 's/[^[:space:]]//' file

or

sed 's/[[:alpha:]]//' file

or contains numbers:

sed 's/[[:alnum:]]//' file

or use:

while read line; do echo "${line:1}" ;done < file