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a relatively simple configuration changer/add-er. If someone out there knows something better - please let me know! ;) Seems like this should already exist
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| #!/bin/bash | |
| #set-conf bash thing | |
| # for setting a configuration setting in a file defaulting with a : colon assignment | |
| # and adds the setting if it doesn't find it. | |
| # | |
| #setconf <filepath&name> "string" "<setting>" | |
| #i.e. setconf.sh /etc/datadog/datadog.yaml | |
| #first things first! | |
| function replace-line-in-file() { | |
| local file="$1" | |
| local line_num="$2" | |
| local setting="$3" | |
| local settingvalue="$4" | |
| local replacement="$3: $4" | |
| #TODO: determine main assignment character used... maybe test for : occurances per # of lines... vs. occurances of = per lines? | |
| # Escape backslash, forward slash and ampersand for use as a sed replacement. | |
| replacement_escaped=$( echo "$replacement" | sed -e 's/[\/&]/\\&/g' ) | |
| sed -i "${line_num}s/.*/$replacement_escaped/" "$file" | |
| } | |
| #TODO: test for existence of all parameters | |
| FILENAME=$1 | |
| STRING2CK4=$2 | |
| SETTINGVALUE=$3 | |
| if [[ -z $FILENAME || -z $STRING2CK4 || -z $SETTINGVALUE ]]; then | |
| echo "all parameters must be passed!" | |
| echo "ex." | |
| echo "setconf.sh <filename & path> <String to search for> <value to set to>" | |
| exit | |
| fi | |
| #TODO: test if permission / access to file exists | |
| echo "Filename: $FILENAME" | |
| echo "STRING2CK4 $STRING2CK4" | |
| echo "SETTINGVALUE: $SETTINGVALUE" | |
| LINE2RPL="$(grep -n -m 1 $STRING2CK4 $FILENAME|sed 's/\([0-9]*\).*/\1/')" | |
| if [ -z "$LINE2RPL" ]; | |
| then | |
| echo "line2RPL is blank - item not found - insert it at end of file!" | |
| echo "${STRING2CK4}: ${SETTINGVALUE}" >>$FILENAME | |
| else | |
| echo "line2RPL is set to '$LINE2RPL' - replacing!"; | |
| replace-line-in-file $FILENAME $LINE2RPL $STRING2CK4 $SETTINGVALUE | |
| fi | |
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