cc/cirrus_home: bin/clm.sh annotate

annotate bin/clm.sh @ 140:0a447db5cf1c

move to ec164.guest

author	Henry S. Thompson <ht@inf.ed.ac.uk>
date	Tue, 19 Oct 2021 12:55:30 +0000
parents	d3ef00af2064
children

rev	line source
125 cd927e5c133f extract Last Modified via cdx Henry S. Thompson <ht@inf.ed.ac.uk> parents: diff changeset	1 #!/usr/bin/bash
134 d3ef00af2064 add usage/help info Henry S. Thompson <ht@inf.ed.ac.uk> parents: 131 diff changeset	2 if [ $# -ne 1 ]
d3ef00af2064 add usage/help info Henry S. Thompson <ht@inf.ed.ac.uk> parents: 131 diff changeset	3 then
d3ef00af2064 add usage/help info Henry S. Thompson <ht@inf.ed.ac.uk> parents: 131 diff changeset	4 echo "Usage: clm.sh outfile
d3ef00af2064 add usage/help info Henry S. Thompson <ht@inf.ed.ac.uk> parents: 131 diff changeset	5 Reads from stdin, which should be a complete set of HTTP header lines,
d3ef00af2064 add usage/help info Henry S. Thompson <ht@inf.ed.ac.uk> parents: 131 diff changeset	6 and _appends_ either the value of the Last-Modified header or a blank
d3ef00af2064 add usage/help info Henry S. Thompson <ht@inf.ed.ac.uk> parents: 131 diff changeset	7 line to the specified output file.
d3ef00af2064 add usage/help info Henry S. Thompson <ht@inf.ed.ac.uk> parents: 131 diff changeset	8
d3ef00af2064 add usage/help info Henry S. Thompson <ht@inf.ed.ac.uk> parents: 131 diff changeset	9 In case of a set of headers containing more than one Last-Modified line,
d3ef00af2064 add usage/help info Henry S. Thompson <ht@inf.ed.ac.uk> parents: 131 diff changeset	10 that output still consists of a single line, with all the values,
d3ef00af2064 add usage/help info Henry S. Thompson <ht@inf.ed.ac.uk> parents: 131 diff changeset	11 separated by a semi-colon (;).
d3ef00af2064 add usage/help info Henry S. Thompson <ht@inf.ed.ac.uk> parents: 131 diff changeset	12
d3ef00af2064 add usage/help info Henry S. Thompson <ht@inf.ed.ac.uk> parents: 131 diff changeset	13 So the output always consists of exactly one line."
d3ef00af2064 add usage/help info Henry S. Thompson <ht@inf.ed.ac.uk> parents: 131 diff changeset	14 exit 1
d3ef00af2064 add usage/help info Henry S. Thompson <ht@inf.ed.ac.uk> parents: 131 diff changeset	15 fi
131 bf943a2f0f37 use printf safely Henry S. Thompson <ht@inf.ed.ac.uk> parents: 130 diff changeset	16 egrep '^Last-Modified: ' \| cut -f 2- -d ' ' \| tr -d '\r' \| { readarray -t a ; IFS=';' ; printf %s "${a[*]}" ; } >> "$1"
130 5efc3985d513 handle multiple L-M lines :-( Henry S. Thompson <ht@inf.ed.ac.uk> parents: 125 diff changeset	17 echo >> "$1"
125 cd927e5c133f extract Last Modified via cdx Henry S. Thompson <ht@inf.ed.ac.uk> parents: diff changeset	18